Clin Nutr ESPEN 2020 Dec 30;40:252-256. Epub 2020 Sep 30.
Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran; GI Cancer Screening and Prevention Research Center, Guilan University of Medical Sciences, Rasht, Iran; Caspian Digestive Disease Research Center, Guilan University of Medical Sciences, Rasht, Iran. Electronic address: