Eiji Uchida

Osaka City University, Ōsaka, Ōsaka, Japan

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Publications (293)495.64 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Background: The traditional National Healthcare Safety Network (previously National Nosocomial Infections Surveillance) risk index is used to predict the risk of surgical site infection across many operative procedures. However, this index may be too simple to predict risk in the various procedures performed in colorectal surgery. The aim of this study was to evaluate the usefulness of the risk index by analyzing the impact of the risk index factors on surgical site infection after abdominal colorectal surgery. Methods: Using our surgical site infection surveillance database, we analyzed retrospectively 538 consecutive patients who underwent abdominal colorectal surgery between 2005 and 2010. Correlations between surgical site infection and the following risk index factors were analyzed: length of operation, American Society of Anesthesiologists score, wound classification, and use of laparoscopy. The 75th percentile for length of operation was determined separately for open and laparoscopic surgery in the study model. Results: Univariate analyses showed that surgical site infection was more strongly associated with a >75th percentile length of operation in the study model (odds ratio [OR], 2.07) than in the traditional risk index model (OR, 1.64). Multivariable analysis found that surgical site infection was independently associated with a >75th percentile length of operation in the study model (OR, 2.75; 95% confidence interval [CI], 1.66-4.55), American Society of Anesthesiologists score≥3 (OR, 2.22; 95% CI, 1.10-4.34), wound classification≥III (OR, 5.29; 95% CI, 2.62-10.69), and open surgery (OR, 2.21; 95% CI, 1.07-5.17). Performance of the risk index category was improved in the study model compared with the traditional model. Conclusions: The risk index category is sufficiently useful for predicting the risk of surgical site infection after abdominal colorectal surgery. However, the 75th percentile length of operation should be set separately for open and laparoscopic surgery.
    Surgical Infections 02/2015; · 1.72 Impact Factor
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    ABSTRACT: Superior mesenteric artery (SMA) syndrome is an uncommon disease resulting from compression and partial obstruction of the third portion of the duodenum from the SMA. A 77-year-old man, who did not have a history of surgery, experienced repeated vomiting and developed abdominal distension. Abdominal CT showed a narrowed third portion of the duodenum, with a distended stomach and proximal duodenum. The patient was diagnosed as having SMA syndrome and was initially treated conservatively, but his condition did not improve. Single-incision laparoscopy-assisted duodenojejunostomy was performed. The patient recovered well and was discharged from hospital on postoperative day 8. Laparoscopic treatment is feasible for the treatment of SMA syndrome given its safety and minimal invasiveness. This is a report of the first case of single-incision laparoscopy-assisted duodenojejunostomy. This procedure is safer and less invasive than a conventional laparoscopic approach in a patient with SMA syndrome. © 2015 Japan Society for Endoscopic Surgery, Asia Endosurgery Task Force and Wiley Publishing Asia Pty Ltd.
    Asian Journal of Endoscopic Surgery 02/2015; 8(1):67-70.
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    ABSTRACT: The incidence of hepatocellular carcinoma (HCC) is rising worldwide. Spontaneous rupture of HCC is occasionally occurred, and ruptured HCC with intraperitoneal hemorrhage is potentially life-threatening. The most common symptom of ruptured HCC is acute abdominal pain. The tumor size in ruptured HCC is significantly greater than that in nonruptured HCC, and HCC protrudes beyond the original liver margin.In the acute phase, hemostasis is the primary concern and tumor treatment is secondary. Transcatheter arterial embolization (TAE) can effectively induce hemostasis. The hemostatic success rate of TAE ranges from 53% to 100%. One-stage surgical operation is a treatment modality for selected patients. Conservative treatment is usually given to patients in a moribund state with inoperable tumors and thus has poor outcomes. Patients with severe ruptures of advanced HCC and poor liver function have high mortality rates. Liver failure occurs in 12% to 42% of patients during the acute phase.In stable phase, tumor treatment, such as transarterial chemoembolization (TACE) or hepatic resection should be concerned.The combination of acute hemorrhage and cancer in patients with ruptured HCC requires a two-step therapeutic approach. TAE followed by elective hepatectomy is considered an effective strategy for patients with ruptured HCC. This article is protected by copyright. All rights reserved.
    Hepatology Research 01/2015; · 2.07 Impact Factor
  • International Cancer Conference Journal. 01/2015;
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    ABSTRACT: Despite the undisputed importance of altered microRNA (miRNA) expression in various cancers, there is limited information on the clinicopathologic significance of cancer-related miRNAs in esophageal squamous cell carcinoma (ESCC). Previously, it was reported that the expression of several miRNAs was dysregulated in ESCC. However, the target genes of these miRNAs have not been identified. Furthermore, additional miRNAs in humans have been discovered recently, indicating that revised miRNA and gene expression profiling for ESCC are necessary. Here, we provide datasets from microarray analyses to identify miRNA and mRNA expression comprehensively in Het-1A, a normal human esophageal squamous cell line, and three human ESCC cell lines.
    Dataset Papers in Science. 12/2014; 376541.
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    ABSTRACT: Cytomegalovirus (CMV) infection is known to be the most frequently viral infection among patients after liver transplantation. This is especially true in pediatric living-donor liver transplantation because the recipients have often not been infected with CMV and postoperative primary infection with CMV frequently occurs. Of 93 patients who underwent pediatric liver transplantation at our department, 33 patients (36.3%) were diagnosed with CMV infection using the antigenemia method (C7-HRP). Retrospective review and statistical analysis were conducted to confirm risk factors of post-transplantation CMV infection. Positive lymphocytes were diagnosed between postoperative days 8 and 111 after transplantation. Ganciclovir or foscavir were administrated to 21 patients. The other 10 patients who had one positive lymphocyte were observed and the cell disappeared on follow-up examination. We did not observe any cases of positive lymphocytes with C7-HRP in patients who received a graft from a CMV antibody-negative donor. Independent predictors associated with CMV infection in the multivariable analysis were administration of OKT3 and grafts from CMV antibody-positive donors. In CMV infection after pediatric liver transplantation, cases with CMV antibody-positive donors and with OKT3 administration for acute rejection are considered high risk, and cases with CMV antibody-negative donors are considered low risk. Copyright © 2014 Elsevier Inc. All rights reserved.
    Transplantation Proceedings 12/2014; 46(10):3543-7. · 0.95 Impact Factor
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    ABSTRACT: IntroductionLaparoscopic distal pancreatectomy (Lap-DP) has been recognized worldwide as a feasible and highly beneficial procedure. The aim of this study is to investigate whether Lap-DP techniques are being implemented safely by surgeons training to perform this procedure.Methods We retrospectively compared the perioperative outcomes of Lap-DP in patients operated on by the surgeon originating this procedure at our hospital (expert surgeon group [E group], n = 47) and patients operated on by surgeons training to perform this procedure (training surgeons group [T group], n = 53).ResultsThe median operating times for the E group and T group were 321 min (range, 150–653 min) and 314 min (range, 173–629 min), respectively; these times were not significantly different (P = 0.4769). The median blood loss in the T group (100 mL; range, 0–1950 mL) was significantly smaller than in the E group (280 mL; range, 0–1920 mL) (P = 0.0003). There were no significant intergroup differences in other operative results: combined operation ratio, spleen- and splenic vessels-preserving ratio, hand-assisted procedure ratio, and the ratio of transition to open. The frequency of pancreatic fistulas in the E group and T group was 12.8% and 16.9%, respectively; these rates were not significantly different (P = 0.5886). There were no significant differences between the two groups in terms of other complications and reoperation rates. The median hospital stay for the E group was significantly shorter than for the T group (10 vs 13 days; P = 0.0307).Conclusion This retrospective analysis shows that teaching safe Lap-DP techniques to surgeons is reflected in stable perioperative outcomes.
    Asian Journal of Endoscopic Surgery 11/2014;
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    ABSTRACT: The short-term safety and efficacy of insertion of a self-expandable metallic colonic stent followed by elective surgery, bridge to surgery (BTS), for malignant large-bowel obstruction (MLBO) have been well described. However, long-term oncological outcomes are still debated. Hence, this study is conducted to evaluate long-term outcomes of colonic stent insertion followed by surgery for MLBO.
    Annals of Surgical Oncology 08/2014; · 3.94 Impact Factor
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    ABSTRACT: OBJECTIVE:: To determine whether the extent of surgery is associated with survival in anorectal malignant melanoma (ARMM). BACKGROUND:: ARMM is a rare and highly malignant neoplasm with unfavorable prognosis. The optimal surgical management, abdominoperineal resection (APR) or local excision (LE), has been long debated, but conclusive evidence has not been obtained. METHODS:: A comprehensive electronic literature search was performed to identify studies evaluating survival between APR and LE for ARMM. The main outcome measures were overall survival, relapse-free survival, and local recurrence. A meta-analysis was performed using the random-effects models to calculate the odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS:: Thirty-one studies, with a total of 1006 patients [544 (54.1%) APR and 462 (45.9%) LE], were included. Meta-analyses showed that overall survival (OR, 1.14; 95% CI, 0.74-1.76; P = 0.54) and relapse-free survival (OR, 0.95; 95% CI, 0.43-2.09; P = 0.89) did not differ significantly between the APR and LE groups. APR significantly reduced local recurrence compared with LE (OR, 0.18; 95% CI, 0.09-0.36; P < 0.00001). CONCLUSIONS:: Although several limitations, such as inclusion of only retrospective studies with relatively small sample size and selection biases for surgical procedure, are involved, this meta-analysis suggested that APR has no survival benefit; however, APR confers better local control than LE. Given that local failures after LE could be managed by salvage surgery, minimizing morbidity and maximizing quality of life should be the focus in surgical treatment of ARMM.
    Annals of surgery 08/2014; · 7.19 Impact Factor
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    ABSTRACT: A 62-year-old woman, with a past history of long-term non-steroidal anti-inflammatory drug use and gastric ulcer, was hospitalized for intestinal obstruction in April 2012. Two stenoses were identified in the ileum in association with small intestinal ulcers, and she underwent partial resection of the small intestine. Histologically, the two lesions were poorly differentiated adenocarcinomas; metastatic small intestinal cancer was suspected, but whole body examination revealed no other lesions. The final diagnosis was multiple primary small intestinal malignancies, necessitating additional resection of the small intestine in July. We report this case to raise awareness among physicians of the possibility of primary small intestinal cancer in patients with multiple small intestinal stenoses.
    08/2014; 111(8):1594-601.
  • Digestive Endoscopy 08/2014; · 1.61 Impact Factor
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    ABSTRACT: The alternative splicing of the extracellular domain of fibroblast growth factor receptor (FGFR)-2 generates the IIIb and IIIc isoforms. FGFR-2 IIIb expression correlates with vascular endothelial growth factor-A (VEGF-A) expression and venous invasion of pancreatic ductal adenocarcinoma (PDAC). By contrast, FGFR-2 IIIc expression correlates with faster development of liver metastasis after surgery, and increased proliferation rates and invasion of the cancer. In this study, we analyzed the expression and roles of total FGFR-2 (both isoforms) to determine the effectiveness of FGFR-2-targeting therapy for PDAC. Immunohistochemically, FGFR-2 was highly expressed in 25/48 (52.1%) PDAC cases, and correlated with advanced-stage cancer. In FISH analysis, FGFR2 was amplified in 3/7 PDAC cell lines. We stably transfected a FGFR-2 short hairpin (sh) RNA targeting the IIIb and IIIc isoforms into FGFR2-amplified-PDAC cells. The proliferation rates, migration, and invasion of FGFR-2-shRNA-transfected cells were lower than those of control cells in vitro. In response to FGF-2, FGFR-2-shRNA-transfected cells showed decreased phosphorylation of extracellular-signal-regulated kinase (ERK) compared with control cells. The FGFR-2-shRNA-transfected cells also expressed lower levels of VEGF-A than control cells, and formed smaller subcutaneous tumors in nude mice. These findings suggest that FGFR-2 is a therapeutic target for inhibition in PDAC. (197/250 words)This article is protected by copyright. All rights reserved.
    Cancer Science 06/2014; · 3.53 Impact Factor
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    ABSTRACT: Abstract Background: Since 2005, we have been conducting prospective surgical site infection (SSI) surveillance and infection control according to the U.S. Centers for Disease Control and Prevention guidelines for patients who undergo gastrointestinal surgery at our institution. Surgical site infection occurs with greater frequency in emergency than in elective surgery because of factors such as ill-conceived preoperative preparation and "dirty" operations. A large number of studies have been reported on risk factors for SSI in elective colorectal surgery; however, there are few papers on such factors in emergency colorectal surgery. The aim of this study was to identify risk factors for incisional SSI in emergency colorectal surgery. Methods: Using our SSI surveillance database, we analyzed retrospectively 78 patients who underwent emergency colorectal surgery between 2005 and 2010. Univariable and multivariable analyses were used to identify risk factors for incisional SSI. Moreover, we subclassified dirty-infected operations (class IV) by the extent of contamination according to our own definition to study the incidence of incisional SSI at each degree. Results: The incidence of incisional SSI was 32.1% (25/78 patients). By univariable analysis, seven parameters correlated with a higher risk of incisional SSI: Surgical incision class III-IV, obesity (body mass index ≥25 kg/m(2)), American Society of Anesthesiologists score 3 or 4 points, chronic kidney disease (serum creatinine concentration >1.2 mg/dL), blood loss ≥200 mL, blood transfusion, and ventilator support. Multivariable analyses showed that surgical incision class III-IV (odds ratio [OR] 5.9; 95% confidence interval [CI] 1.7, 25.2) and obesity (OR 11.9; 95% CI 2.1, 87.8) were independent risk factors for incisional SSI. The incidence of incisional SSI in colon perforation with generalized contamination was statistically higher than that in prepared colon perforation and colon perforation with localized contamination (82.4% vs. 25.0%; p<0.001). Conclusions: The risk factors for incisional SSI in emergency colorectal surgery were incision contamination and obesity. Moreover, the incidence of incisional SSI among the incision class IV operations increased significantly with increasing extents of contamination. As a tactic for management of dirty abdominal wounds, we suggest that primary skin closure is suitable in cases of perforation of a prepared colon or colon perforation with localized contamination. On the other hand, in cases of colon perforation with generalized contamination, delayed primary skin closure or leaving an incision open to heal by secondary intention should be considered.
    Surgical Infections 05/2014; · 1.72 Impact Factor
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    ABSTRACT: We report a case of locally advanced pancreatic tail adenosquamous carcinoma that was treated by performing R0 resection after neoadjuvant chemotherapy with S-1 and gemcitabine. A 75-year-old man visited our hospital because of left lateral abdominal pain. On the basis of computed tomography and endoscopic biopsy findings, an 80-mm locally advanced pancreatic tail carcinoma with direct invasion to the gastric upper body, splenic flexure of the colon, and left kidney was diagnosed. Combined chemotherapy with S-1 and gemcitabine was initiated for reduction in the tumor size. After 11 courses of treatment, computed tomography revealed a partial response in tumor size reduction. Grade 3 neutropenia was observed as an adverse event. Distal pancreatectomy, proximal gastrectomy, partial resection of the descending colon, resection of the left kidney and left adrenal gland, and D2 lymph node dissection were performed. The pathological diagnosis was adenosquamous carcinoma in the pancreatic tail, and an R0 resection was achieved. However, a month after surgery, multiple distant liver metastases were observed. Neoadjuvant chemotherapy with S-1 and gemcitabine may reduce the tumor size in locally advanced pancreatic tail adenosquamous carcinoma and increase the R0 resection rate. However, treatment for distant metastasis is warranted in cases of pancreatic adenosquamous carcinoma.
    Gan to kagaku ryoho. Cancer & chemotherapy 05/2014; 41(5):669-72.
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    ABSTRACT: Along with the increasing need for living-donor liver transplantation (LDLT), the issue of organ shortage has become a serious problem. Therefore, the use of organs from elderly donors has been increasing. While the short-term results of LDLT have greatly improved, problems affecting the long-term outcome of transplant patients remain unsolved. Furthermore, since contradictory data have been reported with regard to the relationship between donor age and LT/LDLT outcome, the question of whether the use of elderly donors influences the long-term outcome of a graft after LT/LDLT remains unsettled. To address whether hepatocyte telomere length reflects the outcome of LDLT, we analyzed the telomere lengths of hepatocytes in informative biopsy samples from 12 paired donors and recipients (grafts) of pediatric LDLT more than 5 years after adult-to-child LDLT because of primary biliary atresia, using quantitative fluorescence in situ hybridization (Q-FISH). The telomere lengths in the paired samples showed a robust relationship between the donor and grafted hepatocytes (r = 0.765, p = 0.0038), demonstrating the feasibility of our Q-FISH method for cell-specific evaluation. While 8 pairs showed no significant difference between the telomere lengths for the donor and the recipient, the other 4 pairs showed significantly shorter telomeres in the recipient than in the donor. Multiple regression analysis revealed that the donors in the latter group were older than those in the former (p = 0.001). Despite the small number of subjects, this pilot study indicates that donor age is a crucial factor affecting telomere length sustainability in hepatocytes after pediatric LDLT, and that the telomeres in grafted livers may be elongated somewhat longer when the grafts are immunologically well controlled.
    PLoS ONE 04/2014; 9(4):e93749. · 3.53 Impact Factor
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    ABSTRACT: With the increasing number of long-term survivors of living donor liver transplantation, the occurrence of secondary cancer is sometimes reported. Solid tumors such as lymphomas are mainly observed. However, only 8 cases of leukemia have been reported so far. For patients younger than 15 years old, leukemia developed in 4 within 3 years after the liver transplantation, whereas acute lymphoblastic leukemia developed in only 1 patient. This is the first case report of a patient in whom FLT3-ITD-positive acute myeloid leukemia (AML) developed more than 10 years after living donor liver transplantation for congenital biliary atresia. AML developed in a 14-year-old boy 11 years after living donor liver transplantation from his father. The patient received the transplant at the age of 3 years and was treated with tacrolimus and methylprednisolone for transplant rejection. Eleven years posttransplantation, he visited the hospital with general malaise and anemia. Blood tests revealed an elevated white blood cell count of 60,100/μL, and the patient was diagnosed with AML. Chromosome analysis revealed a t(6; 9) (p23 q34) translocation; moreover, genetic testing revealed a FLT3-ITD-positive mutation. We started treatment in accordance with the Tokyo Children's Cancer Study Group AML99 protocol. With chemotherapy treatment, the patient achieved complete remission. After chemotherapy, we performed stem cell transplantation from his father. Other patients were reported in relatively early stages after liver transplantation, but our case was more than 10 years posttransplantation. The association with the onset of congenital bile duct atresia and leukemia is still not clear, but we consider the possibility that long-term immunosuppressive drugs contribute to developing leukemia.
    Transplantation Proceedings 04/2014; 46(3):1003-5. · 0.95 Impact Factor
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    ABSTRACT: A 56-year-old woman with an 8-year history of dysphagia and chest pain received a diagnosis of diffuse esophageal spasm by esophageal high-resolution manometry (HRM). Approximately 2 years of medical therapy was ineffective, and the patient's symptoms were worsening. Therefore, surgery was considered to be the most optimal treatment for this patient. The right thoracoscopic approach was selected because a long myotomy from the distal to proximal level of the esophagus was needed based on the HRM findings. The operation was performed in the prone position with establishment of pneumothorax. The total length of the myotomy was 16 cm, and the operation was finished within 2 hours. After the operation, the symptoms were considerably improved and no contractions were detected by HRM. The HRM findings before the operation were classified as rapid contractions with normal latency based on the 2012 Chicago classification of esophageal motility. Treatment for patients with rapid esophageal contractions with normal latency has not been previously described; however, treatment for diffuse esophageal spasm was considered to be pertinent to this patient. In conclusion, right thoracoscopic esophageal long myotomy in the prone position with establishment of pneumothorax may be useful when a proximal-level esophagomyotomy is required based on preoperative mapping by HRM.
    Journal of clinical gastroenterology 03/2014; · 2.21 Impact Factor
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    ABSTRACT: Pioglitazone modulates adipocyte differentiation and enhances adiponectin promoter activity to increase plasma adiponectin levels. We investigated the effects of pioglitazone on cecal ligation and puncture (CLP)-induced visceral-adipose-tissue inflammation and lung injury in mice. Eight-wk-old male mice were assigned to three groups: (1) a sham-operated control group, (2) a CLP group, and (3) a pioglitazone-treated CLP group. Pioglitazone (10 mg/kg) was injected intraperitoneally for 7 d. Serum, lung, and visceral adipose tissue were collected 24 h after surgery. Tumor necrosis factor α (TNF-α) levels in peritoneal lavage fluid were measured by an enzyme-linked immunosorbent assay, and TNF-α and interleukin 6 messenger RNA (mRNA) expression levels in visceral adipose tissue were quantified by real-time polymerase chain reaction. Lung tissue specimens were stained with hematoxylin-eosin, and the terminal deoxynucleotidyl transferase dUTP-mediated nick-end labeling method was used to evaluate tissue damage. TNF-α levels in peritoneal lavage fluid were significantly higher in the CLP group than in the sham group. TNF-α levels in the pioglitazone-treated CLP group were significantly lower than those in the CLP group. TNF-α and interleukin 6 mRNA expression levels of visceral adipose tissue were significantly higher in the CLP group than in the sham group. Pioglitazone treatment decreased the mRNA expression levels of these cytokines compared with the respective values in the CLP group. Histopathologic analysis of lung tissue revealed significantly increased numbers of terminal deoxynucleotidyl transferase dUTP-mediated nick-end labeling-positive cells in the CLP group compared with the sham group. Pioglitazone effectively prevents lung injury caused by CLP-induced sepsis by maintaining the anti-inflammatory status of visceral adipose tissue.
    Journal of Surgical Research 03/2014; · 2.12 Impact Factor
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    ABSTRACT: The effects of mechanical bowel preparation (MBP) on morbidity (e.g., anastomotic leakage and surgical site infection) have been evaluated. Its effect on early recovery after surgery has drawn renewed attention, and its use is discouraged in the postsurgical management of enhanced recovery. However, most surgeons in Japan prefer polyethylene glycol (PEG) for MBP. We investigated the effect of MBP with PEG on postoperative intestinal motility.
    Journal of Surgical Research 03/2014; · 2.12 Impact Factor
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    ABSTRACT: We report an extremely rare case of primary squamous cell carcinoma of the stomach. A 69-year-old man was admitted to our hospital with a 2-month history of dysphagia and tarry stools. Endoscopic examination revealed a cauliflower-shaped protruding mass along the lesser curvature of the gastric cardia. Biopsy of the lesion revealed squamous cell carcinoma of the stomach. Computed tomography revealed a thickened stomach wall and a mass protruding into the gastric lumen. Total gastrectomy with splenectomy, distal pancreatectomy, and Roux-en-Y reconstruction was performed, together with a lower thoracic esophagectomy via a left thoracotomy. Histopathological examination of the specimen revealed well-differentiated squamous cell carcinoma of the stomach. Postoperative follow-up was uneventful for the first 18 months. However, multiple liver metastases and para-aortic lymph node metastasis developed subsequently. Despite systemic combination chemotherapy, the patient died because of progression of the recurrent tumors. Here, we review the characteristics of 56 cases of gastric squamous cell carcinoma reported in Japan.
    Journal of gastric cancer. 03/2014; 14(1):58-62.

Publication Stats

1k Citations
495.64 Total Impact Points

Institutions

  • 2014
    • Osaka City University
      • Graduate School of Medicine
      Ōsaka, Ōsaka, Japan
  • 1988–2014
    • Nippon Medical School
      • • Nippon Medical School Hospital
      • • Department of Surgery
      • • Department of Pathology
      Edo, Tōkyō, Japan
  • 2012
    • Kosei Chuo General Hospital
      Edo, Tōkyō, Japan
  • 2007
    • Kyoto University
      • Institute for Frontier Medical Sciences
      Kioto, Kyōto, Japan
  • 1987–1989
    • University of Nebraska at Omaha
      • • Department of Internal Medicine
      • • Eppley Institute for Research in Cancer and Allied Diseases
      Omaha, NE, United States