Affiliation: | Department of Surgery, Mahdieh Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran;1Iranian Ostomy Society, Division of Colon and Rectal Surgery, Bahman Hospital, Tehran, Iran;2Department of Surgery, Division of Colon and Rectal Surgery, Bahman Hospital, Tehran, Iran;3Department of Health System Research, Gastroenterology and Liver Disease Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran |