University of Mohaghegh Ardabili, University of Mohaghegh Ardabili, Nanjing Medical University - Department of Epidemiology, Ardabil University of Medical Sciences - Digestive Disease Research Center, Ardabil University of Medical Sciences, University of Tehran, University of Tabriz, Mazandaran University of Medical Sciences, National Institute of Genetic Engineering and Biotechnology, Ardabil University of Medical Sciences, Ardabil University of Medical Sciences, Mazandaran University of Medical Sciences, Mazandaran University of Medical Sciences, Mazandaran University of Medical Sciences, Ardabil University of Medical Sciences, Ardabil University of Medical Sciences, Mazandaran University of Medical Sciences, Mazandaran University of Medical Sciences, Mazandaran University of Medical Sciences, Mazandaran University of Medical Sciences, Nanjing Medical University - Department of Epidemiology, Tabriz University of Medical Sciences, Tabriz University of Medical Sciences, Tehran University of Medical Sciences, Tabriz University of Medical Sciences - Liver and Gastrointestinal Diseases Research Center, Tehran University of Medical Sciences - Digestive Disease Research Center, Tehran University of Medical Sciences, University of Tehran, Mazandaran University of Medical Sciences, Tehran University of Medical Sciences, Tehran University of Medical Sciences - Digestive Disease Research Center and Nanjing Medical University - Department of Epidemiology

Tehran University of Medical Sciences - Digestive Disease Research Center, BC Cancer Research Centre (BCCRC) - Cancer Control Research Program, Tehran University of Medical Sciences - Liver and Pancreatobiliary Research Center, Tehran University of Medical Sciences - Liver and Pancreatobiliary Research Center, Tehran University of Medical Sciences - Digestive Oncology Research Center, Shahid Beheshti University of Medical Sciences - Department of Health & Community Medicine, Mashhad University of Medical Sciences - Pharmaceutical Research Center, Isfahan University of Medical Sciences - Applied Physiology Research Center, Kermanshah University of Medical Sciences - Department of Clinical Biochemistry, Tabriz University of Medical Sciences - Liver and Gastrointestinal Diseases Research Center, Shiraz University of Medical Sciences - Microbiology Department, Ahvaz Jundishapur University of Medical Sciences, Qom University of Medical Sciences, Zahedan University of Medical Sciences - Health Promotion Research Center, Mazandaran University of Medical Sciences - Department of Pharmaceutics, Golestan University - Golestan Research Center of Gastroenterology and Hepatology, Urmia University of Medical Sciences - Social Determinants of Health Center, Guilan University of Medical Sciences, Hamadan University of Medical Sciences - Research Center for Health Sciences, Kerman University of Medical Sciences, Ardabil University of Medical Sciences - Digestive Disease Research Center, Kurdistan University of Medical Sciences, Babol University of Medical Sciences - Social Determinants of Health Research Center, Tehran University of Medical Sciences - Liver and Pancreatobiliary Research Center, Tehran University of Medical Sciences - Digestive Disease Research Institute, Tehran University of Medical Sciences - Digestive Disease Research Institute, Tehran University of Medical Sciences - Digestive Disease Research Center, Tehran University of Medical Sciences - Digestive Disease Research Institute, Tehran University of Medical Sciences - Digestive Disease Research Center, Tehran University of Medical Sciences - Liver and Pancreatobiliary Research Center, Tehran University of Medical Sciences - Liver and Pancreatobiliary Research Center, Shahid Beheshti University of Medical Sciences - Clinical TB and Epidemiology Research Center, Iran University of Medical Sciences - Department of Virology, Tehran University of Medical Sciences - Digestive Disease Research Center, Tehran University of Medical Sciences - Digestive Disease Research Center, Tehran University of Medical Sciences - Digestive Disease Research Center, Tehran University of Medical Sciences - Digestive Disease Research Center, Tehran University of Medical Sciences - Department of Radiology, University of Washington - The Institute for Health Metrics and Evaluation, Tehran University of Medical Sciences - Liver and Pancreatobiliary Research Center and Tehran University of Medical Sciences - Digestive Disease Research Center