AmirMohammad Salehi Medical student ,school of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
Hossain Salehi Gastroenterology Ward, Baharlo Hospital, Tehran University of Medical Sciences, Tehran, Iran
Maryam Hasanzarrini Assistant professor of Gastroenterology and Hepatology. Department of internal medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan. Iran.
Elham khanlarzadeh Assistant Professor of Community Medicine, Department of Community Medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan. Iran.