1Professor of Medicine, Division of Gasroenterology & Hepatology, Gastrointestinal & Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, Iran, E-mail: farahnaz@hotmail.com
2Researcher, Gastrointestinal & Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, Iran, E-mail: farahnaz@hotmail.com
3Epidemiologist, Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Tehran, Iran, E-mail: farahnaz@hotmail.com
4Researcher, Gastrointestinal & Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, Iran, E-mail: farahnaz@hotmail.com