Nancy C. Lee

Centers for Disease Control and Prevention, Атланта, Michigan, United States

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Publications (51)408.77 Total impact

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    ABSTRACT: To examine the risk for endometrial cancer among overweight women using the World Health Organization's clinical definitions of obesity based on body mass index (BMI). Conducted in the early 1980s, the Cancer and Steroid Hormone study was a multicenter, population-based, case-control study of breast, ovarian, and endometrial cancers among women aged 20-54 years. Participants for the case group (n=421) were identified through cancer registries and had histologically confirmed endometrial cancer. Participants for the control group (n=3,159) were chosen by random-digit dialing methods in the same regions as those in the case group. Those in the case and control groups responded to the same questions during in-person interviews. Unconditional logistic regression was used to estimate adjusted odds ratios (ORs) and 95% confidence intervals (CIs). The relationship between endometrial cancer and BMI (calculated as weight [kg]/[height (m)]) was modified by age at last menstrual period (LMP). Of women who were younger than 45 years at LMP, those with BMIs of at least 35.0 had a greater risk of endometrial cancer (56%, 30/54) than did those with normal BMIs (4%, 59/1,492, adjusted OR 21.7, 95% CI 11.3-41.7). Of women age 45 or older at LMP, those with BMIs of at least 35.0 also had a greater risk (40%, 24/60) than did those with normal BMIs (14%, 168/1,235, adjusted OR 3.7, 95% CI 2.0-6.6). Women younger than 45 years at LMP and those with BMIs of at least 25.0 at 18 years and as adults (25%, 31/123) had an approximately sixfold increased risk (adjusted OR 5.8, 95% CI 3.4-9.8) compared with those with normal BMIs at 18 and as adults (4%, 58/1,460). Very obese women aged 20-54 years have an elevated endometrial cancer risk, which appears heightened by early menopause. II.
    Obstetrics and Gynecology 08/2009; 114(1):22-7. DOI:10.1097/AOG.0b013e3181ab6784 · 5.18 Impact Factor
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    American Journal of Preventive Medicine 08/2008; 35(1 Suppl):S14-20. DOI:10.1016/j.amepre.2008.04.005 · 4.53 Impact Factor
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    ABSTRACT: Most major medical organizations recommend routine screening for breast, cervical, and colorectal cancers. Screening can lead to early detection of these cancers, resulting in reduced mortality. Yet not all people who should be screened are screened, either regularly or, in some cases, ever. This report presents the results of systematic reviews of effectiveness, applicability, economic efficiency, barriers to implementation, and other harms or benefits of interventions designed to increase screening for breast, cervical, and colorectal cancers by increasing community demand for these services. Evidence from these reviews indicates that screening for breast cancer (mammography) and cervical cancer (Pap test) has been effectively increased by use of client reminders, small media, and one-on-one education. Screening for colorectal cancer by fecal occult blood test has been increased effectively by use of client reminders and small media. Additional research is needed to determine whether client incentives, group education, and mass media are effective in increasing use of any of the three screening tests; whether one-on-one education increases screening for colorectal cancer; and whether any demand-enhancing interventions are effective in increasing the use of other colorectal cancer screening procedures (i.e., flexible sigmoidoscopy, colonoscopy, double contrast barium enema). Specific areas for further research are also suggested in this report.
    American Journal of Preventive Medicine 08/2008; 35(1 Suppl):S34-55. DOI:10.1016/j.amepre.2008.04.002 · 4.53 Impact Factor
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    ABSTRACT: This study assessed the efficacy of community-based screening mammography in protecting against breast cancer death, asking whether age differences in efficacy persisted in the 1990s. In a case-control study with follow-up, odds ratios (OR) were used to estimate the relative mortality rates from invasive breast cancer among women with at least one screening mammogram in the two years prior to a baseline reference date compared to non-screened women, adjusting for potential confounding. The multicenter population-based study included 553 black and white women diagnosed during 1994-1998 who died in the following five years, and 4016 controls without breast cancer. Efficacy for reducing the rate of breast cancer death within five years after diagnosis was greater at ages 50-64 years (OR = 0.47, 95% confidence interval (CI) 0.35-0.63) than at ages 40-49 (OR = 0.89, 95% CI 0.65-1.23), and greater among postmenopausal (OR = 0.45, 95% CI 0.33-0.62) than premenopausal women (OR = 0.74, 95% CI 0.53-1.04). Estimates of efficacy were conservative, as shown by sensitivity analyses addressing whether cancer was discovered by a screening mammogram, age at which screening was received, the length of the screening observation window, and years of follow-up after diagnosis. Despite the persistence of age differences in efficacy of mammography screening, with greater observed benefit for women aged 50-64 years, these findings support current screening recommendations for women 40-64 years old.
    Cancer Causes and Control 12/2007; 18(9):909-18. DOI:10.1007/s10552-007-9006-8 · 2.74 Impact Factor
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    ABSTRACT: We studied the benefit of modern mammography screening in community settings, evaluating age-related differences in rates of late-stage breast cancer detection. Our multicenter population-based case-control study included 931 black and white women with incident breast cancer (American Joint Commission on Cancer Stage IIB or higher) diagnosed 1994-1998 and 4,016 randomly sampled controls never diagnosed with breast cancer. Adjusted odds ratios (ORs) estimated the relative rate of late-stage diagnosis in screened and non-screened women. Women aged 50-64 at diagnosis with at least one screening mammogram in the previous 2 years were significantly less likely to have late-stage diagnosis (OR = 0.41, 95% CI 0.33-0.52). Results for women aged 40-49 were consistent with a screening benefit, although the confidence interval marginally overlapped the null (OR = 0.81, 95% CI 0.64-1.02). Mammography screening was associated with lower rates of late-stage breast cancer among both premenopausal (OR = 0.64, 95% CI 0.50-0.81) and postmenopausal (OR = 0.44, 95% CI 0.35-0.56) women. With modern mammography in the community, rates of late-stage breast cancer diagnoses are lower in screened compared to non-screened women ages 40 and older, but age-related differences persist.
    Cancer Causes and Control 10/2006; 17(7):921-9. DOI:10.1007/s10552-006-0029-3 · 2.74 Impact Factor
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    ABSTRACT: To describe the results of breast cancer screening among low-income and uninsured women in the only national organized screening program in the US, the National Breast and Cervical Cancer Early Detection Program (NBCCEDP). We analyzed mammography and diagnostic follow-up data for 789,647 women who received their first mammogram in the NBCCEDP and 454,754 subsequent mammograms among these women. We calculated the rate of mammograms with abnormal findings, diagnostic follow-up, biopsy, and cancers detected per 1000 mammograms by age and racial or ethnic groups. Positive Predictive Values (PPVs) were estimated for abnormal mammograms and biopsy. Nearly 64% of the women screened in the program were from 50 to 64 years of age and about 46% were members of racial or ethnic minority groups. Women aged 40 to 49 years had the highest rates of abnormal mammograms and of diagnostic follow-up. However, cancer detection rates were highest in women aged 60 to 64 years. In addition, the PPVs for both abnormal mammograms and biopsy were highest in the oldest age group. Cancer detection rates and PPVs for both abnormal mammograms and biopsy were highest in women aged 50 years or more. These results support the programs focus on screening women aged 50 and older for breast cancer.
    Cancer Causes and Control 03/2006; 17(1):29-38. DOI:10.1007/s10552-005-4558-y · 2.74 Impact Factor
  • Ralph J Coates · Leslie S Given · Nancy C Lee · Graham Colditz ·

    Cancer Causes and Control 11/2005; 16 Suppl 1(1):1. DOI:10.1007/s10552-005-0489-x · 2.74 Impact Factor
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    ABSTRACT: The relationship between skin cancer and ultraviolet radiation is well established. Behaviors such as seeking shade, avoiding sun exposure during peak hours of radiation, wearing protective clothing, or some combination of these behaviors can provide protection. Sunscreen use alone is not considered an adequate protection against ultraviolet radiation. This report presents the results of systematic reviews of effectiveness, applicability, other harms or benefits, economic evaluations, and barriers to use of selected interventions to prevent skin cancer by reducing exposure to ultraviolet radiation. The Task Force on Community Preventive Services found that education and policy approaches to increasing sun-protective behaviors were effective when implemented in primary schools and in recreational or tourism settings, but found insufficient evidence to determine effectiveness when implemented in other settings, such as child care centers, secondary schools and colleges, and occupational settings. They also found insufficient evidence to determine the effectiveness of interventions oriented to healthcare settings and providers, media campaigns alone, interventions oriented to parents or caregivers of children, and community-wide multicomponent interventions. The report also provides suggestions for areas for future research.
    American Journal of Preventive Medicine 01/2005; 27(5):422-66. DOI:10.1016/j.amepre.2004.08.009 · 4.53 Impact Factor
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    ABSTRACT: To describe results of cervical cytology screening among low-income and uninsured women in the National Breast and Cervical Cancer Early Detection Program. We analyzed data from 750,591 women who received their first Papanicolaou (Pap) test in the program between July 1995 and March 2001. Nearly 85% of the women were aged 40 years or older. Almost half were members of racial or ethnic minority groups. Overall, the percentage of abnormal Pap test results decreased with increasing age. The rates of cervical intraepithelial neoplasia (CIN) were highest in the younger age groups but the rate of invasive cancer increased with age. White women had the highest age-adjusted percentage of abnormal Pap test results and the highest rate of biopsy-confirmed CIN 2 or worse. In this nationwide screening program, only 7% of all biopsy-confirmed high-grade cervical lesions (CIN 2 or worse) were invasive cancer. This underscores the success of Pap screening in identifying preinvasive disease and preventing cancer. II-3
    Obstetrics and Gynecology 04/2004; 103(3):564-71. DOI:10.1097/01.AOG.0000115510.81613.f0 · 5.18 Impact Factor
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    ABSTRACT: Individuals are increasingly involved in decisions about their health care. Shared decision making (SDM), an intervention in the clinical setting in which patients and providers collaborate in decision making, is an important approach for informing patients and involving them in their health care. However, SDM cannot bear the entire burden for informing and involving individuals. Population-oriented interventions to promote informed decision making (IDM) should also be explored. This review provides a conceptual background for population-oriented interventions to promote informed decisions (IDM interventions), followed by a systematic review of studies of IDM interventions to promote cancer screening. This review specifically asked whether IDM interventions (1) promote understanding of cancer screening, (2) facilitate participation in decision making about cancer screening at a level that is comfortable for individuals; or (3) encourage individuals to make cancer-screening decisions that are consistent with their preferences and values.Fifteen intervention arms met the intervention definition. They used small media, counseling, small-group education, provider-oriented strategies, or combinations of these to promote IDM. The interventions were generally consistent in improving individuals' knowledge about the disease, accuracy of risk perceptions, or knowledge and beliefs about the pros and cons of screening and treatment options. However, few studies evaluated whether these interventions resulted in individuals participating in decision making at a desirable level, or whether they led to decisions that were consistent with individuals' values and preferences. More research is needed on how best to promote and facilitate individuals' participation in health care. Work is especially needed on how to facilitate participation at a level desired by individuals, how to promote decisions by patients that are consistent with their preferences and values, how to perform effective and cost-effective IDM interventions for healthcare systems and providers and in community settings (outside of clinical settings), and how to implement these interventions in diverse populations (such as populations that are older, nonwhite, or disadvantaged). Finally, work is needed on the presence and magnitude of barriers to and harms of IDM interventions and how they might be avoided.
    American Journal of Preventive Medicine 02/2004; 26(1):67-80. DOI:10.1016/j.amepre.2003.09.012 · 4.53 Impact Factor
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    ABSTRACT: Although contemporary guidelines suggest that the intervals between Papanicolaou tests can be extended to three years among low-risk women with previous negative tests, the excess risk of cervical cancer associated with less frequent than annual screening is uncertain. We determined the prevalence of biopsy-proven cervical neoplasia among 938,576 women younger than 65 years of age, stratified according to the number of previous consecutive negative Papanicolaou tests. Using a Markov model that estimates the rate at which dysplasia will progress to cancer, we estimated the risk of cancer within three years after one or more negative Papanicolaou tests, as well as the number of additional Papanicolaou tests and colposcopic examinations that would be required to avert one case of cancer given a particular interval between screenings. Among 31,728 women 30 to 64 years of age who had had three or more consecutive negative tests, the prevalence of biopsy-proven cervical intraepithelial neoplasia of grade 2 was 0.028 percent and the prevalence of grade 3 neoplasia was 0.019 percent; none of the women had invasive cervical cancer. According to our model, the estimated risk of cancer with annual Papanicolaou tests for three years was 2 in 100,000 among women 30 to 44 years of age, 1 in 100,000 among women 45 to 59 years of age, and 1 in 100,000 among women 60 to 64 years of age; these risks would be 5 in 100,000, 2 in 100,000, and 1 in 100,000, respectively, if screening were performed once three years after the last negative test. To avert one additional case of cancer by screening 100,000 women annually for three years rather than once three years after the last negative test, an average of 69,665 additional Papanicolaou tests and 3861 colposcopic examinations would be needed in women 30 to 44 years of age and an average of 209,324 additional Papanicolaou tests and 11,502 colposcopic examinations in women 45 to 59 years of age. As compared with annual screening for three years, screening performed once three years after the last negative test in women 30 to 64 years of age who have had three or more consecutive negative Papanicolaou tests is associated with an average excess risk of cervical cancer of approximately 3 in 100,000.
    New England Journal of Medicine 11/2003; 349(16):1501-9. DOI:10.1056/NEJMoa035419 · 55.87 Impact Factor
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    ABSTRACT: Screening mammography differs between the United States and the United Kingdom; a direct comparison may suggest methods to improve the practice. To compare screening mammography performance between the United States and the United Kingdom among similar-aged women. Women aged 50 years or older were identified who underwent 5.5 million mammograms from January 1, 1996, to December 31, 1999, within 3 large-scale mammography registries or screening programs: the Breast Cancer Surveillance Consortium (BCSC, n = 978 591) and National Breast and Cervical Cancer Early Detection Program (NBCCEDP, n = 613 388) in the United States; and the National Health Service Breast Screening Program (NHSBSP, n = 3.94 million) in the United Kingdom. A total of 27 612 women were diagnosed with breast cancer (invasive or ductal carcinoma in situ) within 12 months of screening among the 3 groups. Recall rates (recommendation for further evaluation including diagnostic imaging, ultrasound, clinical examination, or biopsy) and cancer detection rates were calculated for first and subsequent mammograms, and within 5-year age groups. Recall rates were approximately twice as high in the United States than in the United Kingdom for all age groups; however, cancer rates were similar. Among women aged 50 to 54 years who underwent a first screening mammogram, 14.4% in the BCSC and 12.5% in the NBCCEDP were recalled for further evaluation vs only 7.6% in the NHSBSP. Cancer detection rates per 1000 mammogram screens were 5.8, 5.9, and 6.3, in the BCSC, NBCCEDP, and NHSBSP, respectively. Recall rates were lower for subsequent examinations in all 3 settings but remained twice as high in the United States. A similar percentage of women underwent biopsy in each setting, but rates of percutaneous biopsy were lower and open surgical biopsy higher in the United States. Open surgical biopsies not resulting in a diagnosis of cancer (negative biopsies) were twice as high in the United States than in the United Kingdom. Based on a 10-year period of screening 1000 women aged 50 to 59 years, 477, 433, and 175 women in the BCSC, NBCCEDP, and NHSBSP, respectively, would be recalled; and for women aged 60 to 69 years, 396, 334, and 133 women, respectively. The estimated cancer detection rates per 1000 women aged 50 to 59 years were 24.5, 23.8, and 19.4, respectively, and for women aged 60 to 69 years, 31.5, 26.6, and 27.9, respectively. Recall and negative open surgical biopsy rates are twice as high in US settings than in the United Kingdom but cancer detection rates are similar. Efforts to improve US mammographic screening should target lowering the recall rate without reducing the cancer detection rate.
    JAMA The Journal of the American Medical Association 10/2003; 290(16):2129-37. DOI:10.1001/jama.290.16.2129 · 35.29 Impact Factor
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    ABSTRACT: As part of a case-control study of the efficacy of screening mammography, the authors validated the mammography histories of 2,495 women aged 40-64 years with incident breast cancer diagnosed in 1994-1998 and a 25% random sample of 615 controls never diagnosed with breast cancer, all reporting a mammogram in the past 5 years. Subjects from five metropolitan areas of the United States were cross-classified by facility records ("gold standard") and self-report according to history of a recent screening mammogram (within 1 year or within 2 years). Sensitivity and specificity of self-reported screening at 1 year were 0.93 and 0.82, respectively, for cases and 0.92 and 0.80 for controls. At 2 years, sensitivity and specificity were 0.97 and 0.78 for both cases and controls. Confidence intervals for the differences in sensitivity and specificity were narrow and included zero. Scant evidence was found of telescoping (recollection of events as more recent than actual). Findings suggest that, in an interview-based case-control study of the efficacy of screening mammography, 1) estimated true prevalences of recent screening mammography adjusted for sensitivity and specificity will be slightly lower than self-reported prevalences, and 2) differential misclassification of exposure status is slight. Therefore, odds ratios will likely be biased toward the null, underestimating screening efficacy.
    American Journal of Epidemiology 09/2003; 158(3):264-71. DOI:10.1093/aje/kwg136 · 5.23 Impact Factor
  • Janet Kay Bobo · Herschel W Lawson · Nancy C Lee ·
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    ABSTRACT: Although clinical breast examinations (CBEs) provide important opportunities to detect breast cancer, little is known about factors that affect cancer detection during CBEs performed in community settings. To evaluate several potential factors, we analyzed data from 1,056,153 cancer screening records reported to the National Breast and Cervical Cancer Early Detection Program (NBCCEDP). Using case-series methods, we compared 2159 cancers missed during CBEs with 3161 cancers detected during CBEs. Cancers missed during CBE were found by mammography and confirmed by biopsy or fine needle aspiration. After controling for cancer stage, tumor size, and breast symptoms at time of CBE, we found that patient age and CBE history were significantly associated with the likelihood of cancer detection. Compared to women 50-59, women 40-49 were more likely to have their cancer detected during CBE (odds ratio (OR) = 1.84, 95% confidence interval (95% CI) 1.47-2.29), while women 70 and older were less likely to have it detected (OR = 0.74, 95% CI: 0.55-1.00). Among women receiving their first NBCCEDP-funded CBE, 67.5% had their cancer detected by CBE. Among women receiving their second or third CBE, the values were 59.3 and 48.8%, respectively. In an adjusted logistic model, a significant inverse relationship was observed between number of prior CBEs and percent of cancers detected in the index CBE (OR = 0.79, 95% CI: 0.72-0.88). Among women diagnosed with breast cancer, older women and those who have had multiple CBEs were more likely to have their cancer missed during CBE.
    Cancer Causes and Control 07/2003; 14(5):461-8. DOI:10.1023/A:1024904104286 · 2.74 Impact Factor
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    ABSTRACT: In preparation for jointly publishing official government cancer statistics, the Centers for Disease Control and Prevention (CDC) and the National Cancer Institute (NCI) compared incidence rates from NCI's Surveillance Epidemiology and End Results (SEER) Program and CDC's National Program of Cancer Registries (NPCR). Data for 1999 covering 78% of the US population were obtained from SEER and selected NPCR registries that met high quality data criteria. Incidence rates (per 100,000 population) were age-adjusted to the 2000 US standard population, and 95% gamma confidence intervals were estimated. NPCR rates for all sites combined were higher than SEER rates (males: NPCR 553.6, SEER 538.7; females: NPCR 420.8, SEER 412.5), but rates for specific cancer sites varied by registry program. Rates for colon cancer (males: NPCR 47.0, SEER 42.7; females: NPCR 36.5, SEER 33.8) and tobacco-related cancers were higher in NPCR than SEER. In contrast, NPCR rates were lower than SEER rates for cancers of the female breast (NPCR 134.0, SEER 135.9), prostate (NPCR 162.0, SEER 170.2), and melanoma as well as for cancers more common among Asians and Pacific Islanders (e.g., stomach cancer). Rate differences may arise from population differences in socio-demographic characteristics, screening use, health behaviors, exposure to cancer causing agents or registry operations factors.
    Cancer Causes and Control 04/2003; 14(2):175-93. DOI:10.1023/A:1023002322935 · 2.74 Impact Factor
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    ABSTRACT: Understanding differences in cancer screening among population groups in 2000 and successes or failures in reducing disparities over time among groups is important for planning a public health strategy to reduce or eliminate health disparities, a major goal of Healthy People 2010 national cancer screening objectives. In 2000, the new cancer control module added to the National Health Interview Survey (NHIS) collected more detailed information on cancer screening compared with previous surveys. Data from the 2000 NHIS and earlier surveys were analyzed to discern patterns and trends in cancer screening practices, including Pap tests, mammography, prostate specific antigen (PSA) screening, and colorectal screening. The data are reported for population subgroups that were defined by a number of demographic and socioeconomic characteristics. Women who were least likely to have had a mammogram within the last 2 years were those with no usual source of health care (61%), women with no health insurance (67%), and women who immigrated to the United States within the last 10 years (61%). Results for Pap tests within the last 3 years were similar. Among both men and women, those least likely to have had a fecal occult blood test or endoscopy within the recommended screening interval had no usual source of care (14% for men and 18% for women), no health insurance (20% for men and 18% for women), or were recent immigrants (20% for men and 18% for women). An analysis of changes in test use since the 1987 survey indicates that the disparities are widening among groups with no usual source of care. No striking improvements have been observed for the groups with greatest need. Although screening use for most groups has increased since 1987, major disparities remain. Some groups, notably individuals with no usual source of care and the uninsured are falling further behind; and, according to the 2000 data, recent immigrants also experience a significant gap in screening utilization. More attention is needed to overcome screening barriers for these groups if the population benefits of cancer screening are to be achieved.
    Cancer 04/2003; 97(6):1528-40. DOI:10.1002/cncr.11208 · 4.89 Impact Factor
  • Steven S Coughlin · Nancy C Lee ·

    Cancer Treatment Reviews 02/2003; 29(1):55–57. DOI:10.1016/S0305-7372(02)00128-7 · 7.59 Impact Factor
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    ABSTRACT: On November 8th, 2001, faculty from Universities, government and non-profit community organizations met to determine how, separately and together, they could address disparities in survival of women with breast cancer in the diverse patient populations served by their institutions. Studies and initiatives directed at increasing access had to date met modest success. The day was divided into three sections, defining the issues, model programs, government initiatives and finally potential collaborations. By publishing these proceedings, interested readers will be aware of the ongoing programs and studies and can contact the investigators for more information. The Avon Foundation funded this symposium to bring together interested investigators to share programmatic experiences, data and innovative approaches to the problem.
    Breast Cancer Research and Treatment 11/2002; 75(3):269-80. DOI:10.1023/A:1019947110236 · 3.94 Impact Factor

  • Journal of Women s Health &amp Gender-Based Medicine 04/2002; 11(2):103-9. DOI:10.1089/152460902753645245
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    ABSTRACT: Relatively little is known about factors that predict ongoing participation in mammography screening at regular intervals. Members of managed care plans have access to this preventive service; yet, many still do not receive it routinely. Using administrative data from HIP Health Plan of New York, a group model HMO, 24,215 women ages 50-80 years identified as having a screening mammogram during the baseline period were followed for 2 years to determine demographic and utilization factors that might be related to having a subsequent mammogram within the recommended time interval. Of the 24,215 women with an index mammogram, 71.8;pc had a subsequent screening mammogram within 2 years. Women ages 65-74 years and those with Medicare coverage had the highest mammogram rates among the age and coverage categories. Number of primary care and gynecology physician visits was strongly related to having a subsequent mammogram. The average (mean) time between index and subsequent mammogram was 14.4 months. The significance of health plan visits in subsequent mammography underscores the importance of physician-patient communication in a managed care plan and the integration of health plan members into the HMO delivery system. Even in this environment with equal access for all types of coverage, Medicaid members were less likely to receive this preventive service.
    Preventive Medicine 01/2002; 33(6):661-7. DOI:10.1006/pmed.2001.0942 · 3.09 Impact Factor

Publication Stats

3k Citations
408.77 Total Impact Points


  • 1987-2006
    • Centers for Disease Control and Prevention
      • • Division Of Cancer Prevention and Control
      • • National Center for Chronic Disease Prevention and Health Promotion
      • • Division of Reproductive Health
      Атланта, Michigan, United States
  • 1991
    • Henry Ford Hospital
      Detroit, Michigan, United States
  • 1989
    • U.S. Department of Health and Human Services
      Washington, Washington, D.C., United States