Affiliation: | 1. Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran;2. Cancer Research Center, Golestan University of Medical Sciences, Gorgan, Iran;3. Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA;4. Deputy of Public Health, Golestan University of Medical Sciences, Gorgan, Iran;5. Deputy of Treatment, Golestan University of Medical Sciences, Gorgan, Iran;6. Department of Pathology, Golestan University of Medical Sciences, Gorgan, Iran;7. Office of the Director, International Agency for Research on Cancer (IARC), Lyon, France;8. Cancer Surveillance Branch, International Agency for Research on Cancer (IARC), World Health Organization (WHO), Lyon, France;9. Digestive Oncology Research Center, Digestive Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran |