Document Type : Original article
Authors
1 Department of Infectious diseases & Tropical Medicine and Antimicrobial Resistance Research Center, Communicable Disease Institute, Mazandaran University of Medical Sciences, Sari, Iran.
2 Department of Gastroenterology and Hepatology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
3 Formerly,professor of Gastroenterology and Hepatology,Mashhad university of Medical sciences,He was dead from covid 19 at 2020
4 Department of Gastroenterology and Hepatology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
5 Department of Internal Medicine,Mashhad Branch Islamic Azad University, Mashhad, Iran.
6 Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
7 Faculty of medicine, Mashhad University of Medical sciences, Mashhad, Iran
Abstract
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