1 Student Research Committee, Baqiyatallah University of Medical Sciences, Tehran, Iran; Baqiyatallah Research Center for Gastroenterology and Liver Diseases (BRCGL), Baqiyatallah University of Medical Sciences, Tehran, Iran; Middle East Liver Diseases (MELD) Center, Tehran, Iran.
2 Baqiyatallah Research Center for Gastroenterology and Liver Diseases (BRCGL), Baqiyatallah University of Medical Sciences, Tehran, Iran; Middle East Liver Diseases (MELD) Center, Tehran, Iran. Electronic address: alavian@thc.ir.