1. Gastroenterology and Hepatology Diseases Research Center, Qom University of Medical Sciences, Qom, Iran
2. Department of Infectious Disease, School of Medicine, Kamkar-Arabnia Hospital, Qom
University of Medical Sciences, Qom, Iran
3. Department of Internal Medicine, School of Medicine, Gastrointestinal and Liver Diseases Research Center, Colorectal
Research Center, Hazrat-e Rasool General Hospital, Iran University of Medical Sciences, Tehran, Iran
4. Department of Internal Medicine, Gastroenterohepatology Research Center, School of Medicine, Shiraz University of
Medical Sciences, Shiraz, Fars, Iran
5. Department of Anesthesiology, School of Medicine, Shahid Beheshti Hospital,
Qom University of Medical Sciences, Qom, Iran
6. Research Center for Environmental Pollutants, Qom University of
Medical Sciences, Qom, Iran