Fekete Mónika

• Medical Doctor at Semmelweis University

Treatment delay in breast cancer care represents a significant concern in oncology, potentially impacting patient survival outcomes. While various factors can contribute to delayed treatment initiation, the quantitative relationship between specific delay intervals and survival remains incompletely understood in breast cancer management. Our study...

Gait alterations are recognized as early markers of age-related decline and cognitive impairment. Dual-task assessments, which impose cognitive load while walking, provide valuable insights into gait control limitations and cognitive-motor interactions in aging populations. This study evaluates age-related and cognitive load-induced changes in gait...

e22610 Background: Emerging evidence suggests that physical activity may play a pivotal role in improving survival outcomes among cancer patients. However, the extent of its impact across different cancer types remains unclear. Here we aimed to quantify the association between physical activity and survival outcomes in patients with various solid t...

e22551 Background: Lung cancer remains a leading cause of cancer-related mortality worldwide, with well-established risk factors such as smoking and environmental exposures. However, the relationship between body mass index (BMI) and lung cancer risk in non-smokers has garnered increasing attention due to its potential implications for cancer preve...

e22508 Background: Red and processed meats have long been implicated as dietary risk factors for colorectal cancer (CRC). However, limited attention has been given to the distinct effects of different meat types, including red, processed, and total meat, on the risk of CRC and its subtypes, colon and rectal cancers. This gap in knowledge underscore...

Timely initiation of treatment is a core principle of oncologic care, especially for aggressive cancers such as lung cancer. However, the real-world impact of short-term delays in treatment initiation on survival outcomes in lung cancer remains unclear. This meta-analysis evaluates the association between treatment delays of 4, 8, and 12 weeks and...

Depression is a prevalent but often underrecognized comorbidity among cancer patients. Emerging evidence suggests that psychological distress may adversely impact cancer outcomes, but the magnitude of its effect on survival remains unclear. This meta-analysis evaluates the association between depression diagnosed after cancer diagnosis and cancer-s...

Background Depression is a prevalent comorbidity in cancer patients, potentially affecting their quality of life, treatment adherence, and biological processes such as immune function and inflammation. Evidence suggests that depression may contribute to poorer outcomes. The objective of our study was to identify studies examining the association be...

Vitamin D plays a crucial role in the regulation of the immune system, with immunomodulatory effects that are key in the prevention of colorectal cancer (CRC). Over the past decades, research has shown that this steroid hormone impacts much more than bone health, significantly influencing immune responses. Vitamin D enhances immune organ functions...

Cancer remains a major global health challenge, and growing evidence suggests that physical activity is a key modifiable factor that may improve survival outcomes in cancer patients. However, a comprehensive, large-scale synthesis of the effects of post-diagnosis physical activity across multiple cancer types remains lacking. This meta-analysis aim...

Sleep disorders, particularly insomnia and obstructive sleep apnea, are increasingly implicated as significant contributors to cognitive decline, dementia, and neurodegenerative diseases such as Alzheimer’s disease (AD) and vascular cognitive impairment and dementia (VCID). However, the extent and specificity of these associations remain uncertain....

Increasing evidence suggests that red and processed meat consumption may elevate the risk of colorectal cancer (CRC), yet the magnitude and consistency of this association remain debated. This meta-analysis aims to quantify the relationship between red and processed meat intake and the risk of CRC, colon cancer, and rectal cancer using the most com...

Delaying the initiation of cancer treatment increases the risk of mortality, particularly in colorectal cancer (CRC), which is among the most common and deadliest malignancies. This study aims to explore the impact of treatment delays on mortality in CRC. A systematic literature search was conducted in PubMed, Web of Science, and Scopus for studies...

The global aging population presents significant challenges to public health systems, particularly in countries like Hungary, which faces some of the least favorable health indicators in the European Union. To address these challenges, Purpose in Life (PIL) has emerged as a critical determinant of healthy aging, influencing physical, mental, and so...

Multiple myeloma (MM), an incurable malignancy of plasma cells, is predominantly an age-related disease, with the majority of cases occurring in patients over the age of 60. Cellular senescence, a fundamental biological process underlying aging, has been increasingly recognized for its critical role in developing age-related malignancies. In this s...

Europe is experiencing a significant demographic shift, with aging populations posing economic and social challenges due to increased healthcare costs and a higher prevalence of age-related diseases. Hungary, in particular, faces these challenges acutely due to higher morbidity and mortality rates from a range of chronic age-related diseases and be...

The link between abnormal sleep duration and stroke outcomes remains contentious. This meta-analysis quantifies how both short and long sleep durations impact stroke incidence and mortality. A comprehensive search was conducted in PubMed, Web of Science, Cochrane Library, Embase, and Google Scholar up to November 1, 2024, to identify cohort studies...

Sleep duration is a crucial factor influencing health outcomes, yet its relationship with mortality remains debated. In this meta-analysis, we aimed to investigate the association between short and long sleep duration and all-cause mortality in adults, including sex-specific differences. A systematic search was performed in multiple databases, incl...

Az asztma, a krónikus obstruktív tüdőbetegség (COPD), az intersticiális tüdőbetegségek és a tüdőrák olyan kórállapotok, melyeket változó progresszió jellemez. Egyes betegek hosszabb tünetmentes periódusokat élnek meg, míg másoknál akut exacerbációk fordulnak elő. A gyógyszereket a betegek légzésfunkciójához, az aktuális egészségi állapotukhoz és a...

Age-related cognitive impairment and dementia pose a significant global health, social, and economic challenge. While Alzheimer’s disease (AD) has historically been viewed as the leading cause of dementia, recent evidence reveals the considerable impact of vascular cognitive impairment and dementia (VCID), which now accounts for nearly half of all...

Glucagon-like peptide-1 receptor (GLP-1R) agonists, such as exenatide (Byetta, Bydureon), liraglutide (Victoza, Saxenda), albiglutide (Tanzeum), dulaglutide (Trulicity), lixisenatide (Lyxumia, Adlyxin), semaglutide (Ozempic, Rybelsus, Wegovy), and tirzepatide (Mounjaro, Zepbound), are widely used for the treatment of type 2 diabetes mellitus (T2DM)...

Long COVID (also known as post-acute sequelae of SARS-CoV-2 infection [PASC] or post-COVID syndrome) is characterized by persistent symptoms that extend beyond the acute phase of SARS-CoV-2 infection, affecting approximately 10% to over 30% of those infected. It presents a significant clinical challenge, notably due to pronounced neurocognitive sym...

Stroke is a leading cause of morbidity and mortality worldwide, and dietary patterns have emerged as a significant modifiable factor in stroke prevention. The Mediterranean diet, characterized by high intake of fruits, vegetables, whole grains, nuts, olive oil, and fish, has been widely recognized for its cardiovascular benefits. However, its speci...

Background: Thrombotic microangiopathy (TMA) is a potentially life-threatening complication associated with carfilzomib, a proteasome inhibitor approved for treating multiple myeloma. TMA typically presents within the initial months of treatment; however, delayed onset is rare and poses significant diagnostic challenges. Methods: We conducted a ret...

Background Chronic obstructive pulmonary disease (COPD) is a significant public health issue characterized by gradually worsening airflow limitation. It is a leading cause of mortality and morbidity worldwide, yet research on COPD patients who have never smoked is limited. This study aims to document the demographic, symptomatic, and therapeutic ch...

Obesity is a significant modifiable risk factor for dementia. This study aims to quantify the global impact of obesity on dementia burden and examine how national strategies for managing overweight/obesity and dietary factors influence dementia prevalence and mortality, with a focus on sex-specific differences. We used data from the Global Burden o...

Background: Chronic obstructive pulmonary disease (COPD) is a progressive, inflammatory airway disorder characterized by a gradual decline in lung function and increased oxidative stress. Both oxidative stress and inflammation are central to its pathophysiology, with trace elements such as zinc, copper, iron, manganese, magnesium, selenium, and cal...

With a growing elderly population in the European Union, age-related diseases associated with unhealthy aging pose increasing public health challenges, including a loss of independence and heightened societal burdens. The Semmelweis Study, a prospective occupational cohort study in Hungary, seeks to identify determinants of unhealthy aging, focusin...

Issue/problem Europe’s aging population presents substantial hurdles for healthcare sustainability. To alleviate the social and economic impacts of age-related diseases, promoting healthy aging is imperative. However, motivating individuals to adopt a healthier lifestyle proves challenging. Description of the problem Semmelweis University, a leadi...

Breast cancer is a leading cause of cancer-related mortality among women worldwide, particularly affecting those in their later years. As the incidence of breast cancer increases with age, understanding the biological mechanisms that link aging and cancer becomes crucial. Cellular senescence, a hallmark of aging, plays a dual role in cancer by inhi...

Aging is a multifaceted process characterized by a gradual decline in physiological function and increased susceptibility to a range of chronic diseases. Among the molecular and cellular mechanisms driving aging, genomic instability is a fundamental hallmark, contributing to increased mutation load and genetic heterogeneity within cellular populati...

Az inhalátorok megfelelő használata kulcsfontosságú az asztma és a krónikus obstruktív tüdőbetegség (COPD) hatékony kezelésében. A helyes inhalációs technika biztosítja az optimális gyógyszereljutást a tüdőbe, növelve a kezelés hatékonyságát. A betegek egy része minden igyekezete ellenére sem képes megfelelő hatékonysággal használni inhalációs eszk...

The incidence of colorectal cancer (CRC) has been steadily rising, and obesity has been identified as a significant risk factor. Numerous studies suggest a strong correlation between excess body weight and increased risk of CRC, but comprehensive quantification through pooled analysis remains limited. This study aims to systematically review and me...

A krónikus obstruktív tüdőbetegség (COPD) gyakran társul kognitív károsodással, jelentősen befolyásolva ezzel a betegek életminőségét és kezelésének hatékonyságát. Ennek hátterében több, egymást befolyásoló tényező áll, közülük a leggyakoribb az oxigénhiány miatti szöveti hypoxia. Annak ellenére, hogy a kognitív károsodásnak komoly hatása van a COP...

Acquired hemophilia A (AHA) is a rare autoimmune bleeding disorder characterized by the development of neutralizing autoantibodies (inhibitors) against coagulation factor VIII (FVIII). This review provides an in-depth exploration of AHA, covering its epidemiology, pathogenesis, clinical presentation, diagnosis, complications, and treatment strategi...

Aging is closely associated with various cerebrovascular pathologies that significantly impact brain function, with cerebral small vessel disease (CSVD) being a major contributor to cognitive decline in the elderly. Consequences of CSVD include cerebral microhemorrhages (CMH), which are small intracerebral bleeds resulting from the rupture of micro...

The aging population in Europe faces a substantial burden from dementia, with vascular cognitive impairment and dementia (VCID) being a preventable cause. Atrial fibrillation (AF), a common cardiac arrhythmia, increases the risk of VCID through mechanisms such as thromboembolism, cerebral hypoperfusion, and inflammation. This review explores the ep...

Colorectal cancer (CRC) is a major global health concern and represents a significant public health challenge in Hungary, where it exhibits some of the highest morbidity and mortality rates in the European Union. The Mediterranean diet has been suggested to reduce the incidence of CRC, but comprehensive evidence from diverse study designs is needed...

Oncobiosis has emerged as a key contributor to the development, and modulator of the treatment efficacy of cancer. Hereby, we review the modalities through which the oncobiome can support the progression of tumors, and the emerging therapeutic opportunities they present. The review highlights the inherent challenges and limitations faced in samplin...

Introduction: Acquired Hemophilia A (AHA) is a rare autoimmune disorder characterized by the emergence of inhibitors that specifically target coagulation Factor VIII, frequently resulting in severe bleeding episodes. Methods: We conducted a retrospective analysis of the medical records of a 68-year-old male patient who presented with adalimumab-ind...

The presence of prolonged symptoms after COVID infection worsens the workability and quality of life. 200 adults with long COVID syndrome were enrolled after medical, physical, and mental screening, and were divided into two groups based on their performance. The intervention group ( n = 100) received supervised rehabilitation at Department of Pulm...

Introduction Low socioeconomic status affects not only diagnosis rates and therapy of patients with diabetes mellitus but also their health behavior. Our primary goal was to examine diagnosis rates and therapy of individuals with diabetes living in Ormánság, one of the most deprived areas in Hungary and Europe. Our secondary goal was to examine the...

The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has introduced the medical community to the phenomenon of long COVID, a condition characterized by persistent symptoms following the resolution of the acute phase of infection. Among the myriad of symptoms reported by long COVID sufferers, chronic fatigue, cognitive disturbances, and exercise i...

Recent research exploring the relationship between the gut and the brain suggests that the condition of the gut microbiota can influence cognitive health. A well-balanced gut microbiota may help reduce inflammation, which is linked to neurodegenerative conditions. Prebiotics, probiotics, and symbiotics are nutritional supplements and functional foo...

Geroscience, a burgeoning discipline at the intersection of aging and disease, aims to unravel the intricate relationship between the aging process and pathogenesis of age-related diseases. This paper explores the pivotal role played by geroscience in reshaping our understanding of pathology, with a particular focus on age-related diseases. These d...

Cognitive impairment and dementia are burgeoning public health concerns, especially given the increasing longevity of the global population. These conditions not only affect the quality of life of individuals and their families, but also pose significant economic burdens on healthcare systems. In this context, our comprehensive narrative review cri...

Significant regional variability in lifespan in Europe is influenced by environmental factors and lifestyle behaviors, including diet. This study investigates the impact of geographical region on the lifespan of European rulers spanning from the fourteenth century to the present day. By analyzing historical records and literature, we aim to identif...

Introduction : The selective Bcl-2 inhibitor venetoclax has shown promising therapeutic potential in multiple myeloma, particularly in cases associated with t(11;14) IGH::CCND1 translocation. However, the efficacy of venetoclax in myeloma patients with the t(6;14) IGH::CCND3 translocation remains less investigated. Methods: In this study, we conduc...

The aging population worldwide is facing a significant increase in age-related non-communicable diseases, including cardiovascular and brain pathologies. This comprehensive review paper delves into the impact of the exposome, which encompasses the totality of environmental exposures, on unhealthy aging. It explores how environmental factors contrib...

Diet has been described as a modifiable risk factor for the development and progression of chronic diseases, and emerging evidence increasingly points to its preventive and therapeutic role in chronic obstructive pulmonary disease (COPD). While the relationship between the underlying disease and diet is natural in conditions such as metabolic disor...

Currently, an increasing amount of evidence supports the notion that vitamins C, D and E, carotenoids, and omega-3 fatty acids may protect against the progression of chronic respiratory diseases. Although chronic obstructive pulmonary disease (COPD) primarily affects the lung, it is often accompanied by extrapulmonary manifestations such as weight...

Introduction: Acquired factor V inhibitor (AFVI) is a rare autoimmune bleeding disorder. The treatment of AFVI is challenging, and patients often require both bleeding control and inhibitor eradication. Methods: We conducted a retrospective analysis of the medical records of a 35-year-old Caucasian woman who presented with severe AFVI-induced bleed...

Functional conditions like lung function and exercise capacity are important limiting factors of chest surgery in lung cancer with co-morbidities (chronic obstructive pulmonary disease (COPD) and other chronic respiratory diseases). Pulmonary rehabilitation has a favourable effect on the cardiovascular system, metabolism, respiratory and peripheral...

A súlyos akut légúti tünetegyüttest okozó koronavírus (SARS-CoV) 2002-ben jelent meg először Kínában. A fertőzések elsősorban az egészségügyi dolgozókat érintették, a szigorú járványügyi intézkedésekkel az endémia 2003 júliusában véget ért. A COVID19 (koronavírus-betegség 2019) betegséget kiváltó korona-vírus a SARS-CoV-2 (súlyos akut légúti tünete...

Background: Many patients with previous COVID-19 infection suffer from prolonged symptoms after their recovery: cough, dyspnea, chest pain, shortness of breath, fatigue, anxiety or depression, regardless of milder or severe coronavirus infection. Review of the literature demonstrates underrepresented complex cardiopulmonary rehabilitation of patie...

Background: In chronic obstructive pulmonary disease (COPD), uptake of the coronavirus disease 2019 (COVID-19) booster vaccine is important, as they are more likely to develop serious complications. Our aim was to investigate the uptake rate of first booster vaccination against COVID-19 among COPD patients and to identify other related factors of...

Background: Both lung transplant recipients and candidates are characterised by reduced training capacity and low average quality of life (QoL). This review investigates the impact of training on exercise ability and QoL in patients before and after lung transplant. Methods: Searches were conducted from the beginning to 7 March 2022 using the terms...

Background: An increasing number of studies suggest that diet plays an important role in regulating aging processes and modulates the development of the most important age-related diseases. Objective: The aim of this review is to provide an overview of the relationship between nutrition and critical age-associated diseases. Methods: A literatu...

Introduction: Coronavirus infection is a particular risk for patients with chronic obstructive pulmonary disease (COPD), because they are much more likely to become severely ill due to oxygen supply problems. Primary prevention, including COVID-19 vaccination is of paramount importance in this disease group. The aim of our study was to assess COVID...

In laboratory mice, pituitary dwarfism caused by genetic reduction or elimination of the activity of growth hormone (GH) significantly extends lifespan. The effects of congenital pituitary dwarfism on human longevity are not well documented. To analyse the effects of untreated pituitary dwarfism on human lifespan, the longevity of a diverse group o...

Background: The omega-3 polyunsaturated fatty acids (PUFAs) have an anti-inflammatory effect, beneficial for allergies, asthma, chronic obstructive pulmonary disease (COPD), reduce cholesterol and triglyceride levels and blood inflammatory parameters [C-reactive protein (CRP), interleukin-6 (IL-6), interleukin-8 (IL-8), tumor necrosis factor-alpha...

Purpose The purpose of current review is to conduct a systematic overview of articles published between 2019 and 2021 on the relationship of comorbidities and mortality due to Coronavirus Disease 2019 (COVID-19) among the elderly population. Methods We conducted a systematic search on PubMed for articles published between 2019 and 2021 to identify...

Background Decreased physical activity significantly increases the probability of prevalent metabolic syndrome (MetS) with substantial impact on the expected course of COPD. Objective Our research aims to assess the metabolic consequences of chronic obstructive pulmonary disease (COPD) and evaluate the prevalence of MetS and its interrelations wit...

Introduction: Patients with chronic obstructive pulmonary disease (COPD) are a vulnerable group in terms of the outcome of coronavirus infection in relation to their disease or its treatment, with a higher risk of developing serious complications compared to the healthy population. Aim: The aim of our summary study is to review the background an...

Purpose The goal of our review was to gather information on the most important community-acquired and hospital-acquired co-infections among coronavirus disease 2019 (COVID-19) patients, and to examine not only the effect of these co-infections on disease outcomes but also to identify the possible risk factors that predispose COVID-19 patients to co...

Bevezetés: A mikrobiom (az emberi szervezetben élő mikrobák összessége) több milliárd mikroorganizmusból áll, a benne élő fajok diverzitása és épsége döntő szerepet játszik a gazdaszervezet egészségének fenntartásában. A bél mikrobiom össztömege akár a két kilogrammot is elérheti, kb. egyharmada (30%-a) nagy hasonlóságot mutat a fajok között, azonb...

A COVID-19-fertőzésen átesett betegek közül többen elhúzódó panaszokról számolnak be a felépülést követően, sokaknál tartósan fennáll a köhögés, a nehézlégzés, a mellkasi fájdalom, a légszomj attól függetlenül, hogy enyhe vagy súlyosabb tüneteket okozott a koronavírus. A betegek erőtlennek érzik magukat, erős fáradtságérzetre panaszkodnak, míg máso...

Background Near-infrared spectroscopy (NIRS) technology can evaluate muscle metabolism and oxygenation. NIRS-based oximeters can measure skeletal muscle oxygen delivery and utilization during static and dynamic work non-invasively. Our goal was to assess the value and usability of NIRS technology in chronic obstructive pulmonary disease (COPD) reha...

Introduction: Chronic Obstructive Pulmonary Disease (COPD) is a progressive disease associated with worsening lung function, exacerbations and myriad factors affecting quality of life. Aim: Our cross-sectional study aims was to assess the quality of life of COPD patients and its determinants. Methods: 200 COPD patients aged over 40 years completed...

Background Asthma and chronic obstructive pulmonary diseases are conditions characterized by a variable progression. Some individuals experience longer asymptomatic periods while others acute worsening periods and/or exacerbations triggered by symptom multiplication factors. Medications are adjusted to the patients’ respiratory function, self-asses...

Background Pathological alterations in nutritional status may develop in Chronic Obstructive Pulmonary Disease (COPD) patients through production of inflammatory cytokines and inadequate diet. Objective The aim of our study was to determine the correlation between nutritional status and quality of life of COPD patients. Methods We evaluated the n...

Background Chronic obstructive pulmonary disease (COPD) is the fourth most frequent disease globally, and its worldwide prevalence is projected to increase in the following decades. Health-related quality of life (HRQOL) of COPD patients depends on multiple factors. Objective The aim of this study was to identify the most important risk factors af...

Background: In severe chronic obstructive pulmonary disease (COPD), interval training (IT) can be performed with oxygen support, which provides beneficial effect on metabolic processes, tissue perfusion, and peripheral muscle function. Methods: A prospective cohort study with matched controls was performed on patients in Budapest at the Departme...

Purpose Our study aimed to explore the effect of parental occupational exposure to endocrine disrupting chemicals (EDCs) on the development of congenital heart diseases (CHDs) in the offspring, and to compare job-exposure matrix (JEM)-assessed and self-reported occupational exposures with each other. Methods Live-born infants born in 2007–2008 wer...

Összefoglaló. Bevezetés: Krónikus obstruktív tüdőbetegségben (COPD) az obesitas mellett a csökkent fizikai aktivitás nagymértékben fokozza a metabolikus szindróma kialakulásának valószínűségét. Célkitűzés: Kutatásunk célja volt felmérni a metabolikus szindróma prevalenciáját COPD-ben, valamint azt, hogy milyen mértékben függ össze az életkorral, a...

Összefoglaló. Bevezetés: Civilizált világunk, miközben látszólag túltáplált, ómega-3-hiányban szenved. A hosszú szénláncú, többszörösen telítetlen zsírsavak számos anyagcsere-megbetegedés (például elhízás, 2-es típusú diabetes mellitus, szív- és érrendszeri megbetegedések) kialakulásában játszhatnak szerepet. A halolajban lévő zsírsavak erősítik az...

The etiology of congenital heart diseases is not fully understood yet, however, endocrine disrupting chemicals may have a causative role in their development. The purpose of our study was to examine the association between congenital heart diseases and periconceptional parental occupational exposure to endocrine disrupting chemicals. In our Hungari...

Bevezetés: A COVID-19 (koronavírus-betegség 2019) heveny légúti fertőzés, kórokozója a SARS-CoV-2, mely jelenleg is zajló világjárványt okoz. A világon és hazánk¬ban is az igazolt fertőzöt¬tek száma egyre nő, melyre az egészségügyi ellátórendszerek nem voltak felkészülve. Célkitűzés, módszer: Az összefoglaló elsődleges célja a COVID-19 járványra re...

Bevezetés: COPD-ben szenvedő betegeknél kóros tápláltsági állapot alakulhat ki a gyulladásos citokinek termelődése valamint a beszűkült étrend miatt. Célkitűzés: A COPD-s betegek tápláltsági állapotának kombinált rizikószűrése, a testtömeg rendellenességének és kapcsolatának vizsgálata a légzőszervi és funkcionális paraméterekkel, valamint e rendel...

Background: Based on current evidence, vaccination is recommended against the influenza virus and pneumococcus to avoid serious acute exacerbations in patients with chronic obstructive pulmonary disease (COPD), but the rate of their vaccination coverage is still suboptimal. To determine the prevalence and effectiveness of influenza and pneumococca...

Background: In COPD, aside from obesity, decreased physical activity significantly increases the probability of developing metabolic syndrome, which can have a great impact on the natural course of COPD. Objective: The purpose of our study was to evaluate the prevalence of metabolic syndrome and whether it is related to age, sex, comorbidities, dru...

Introduction: The mistrust of vaccinations is already experienced among physicians. It is important for physicians to be well informed, able to convince their patients of the usefulness of vaccinations and set good example for them in this field. Aim: The aim of the study was to assess the vaccine knowledge and attitudes of the general medical stud...

Introduction: The increased metabolism of nutrients and the low energy intake may lead to malnutrition among chronic obstructive pulmonary disease (COPD) patients. Aim: The goal of our study was to examine the nutritional status of our population aged over 40, and its relationship with the severity of the disease. Method: We conducted a retrospecti...

Az iskolai dohányzás-prevenciós programok szerves részét képezik a dohányzás visszaszorítását célzó szerteágazó tevékenységeknek. Hazai vonatkozásban, az iskolákban ténylegesen zajló dohányzás-prevenció gyakoriságáról, kivitelezésük módjáról, tartalmáról illetve korlátairól kevés tájékoztatás áll rendelkezésre. Vizsgálatunk célja magyar nagyvárosok...