This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Hossain Salehi
Gastroenterology Ward, Baharlo Hospital, Tehran University of Medical sciences, Tehran, Iran
Amir Mohammad Salehi
Mohammad Ebrahim Ghamarchehreh
Elham khanlarzadeh
Assistant Professor of Community Medicine , Department of Community Medicine, School of Medicine, Hamadan University of Medical Sciences , Hamadan. Iran.
Masoud Reza Sohrabi
Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran.
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