| Affiliation: | (1) Faculty of Medicine, American University of Beirut, Beirut, Lebanon;(2) Faculty of Health Sciences, American University of Beirut, P.O. Box 11-0236, Riad El Solh, Beirut, 1107-2020, Lebanon;(3) Department of Gastroenterology, Rasoul Al-Azam Hospital, Beirut, Lebanon;(4) Department of Gastroenterology, Hammoud Hospital, Saida, Lebanon;(5) Department of Gastroenterology, Islamic Hospital, Tripoli, Lebanon;(6) Department of Gastroenterology, Jabal Amel Hospital, Jabal Amel, Lebanon;(7) Department of Gastroenterology, Hotel Dieu de France, Beirut, Lebanon;(8) Department of Gastroenterology, Nabatieh Hospital, Nabatieh, Lebanon;(9) Department of Gastroenterology, Rizk Hospital, Beirut, Lebanon;(10) Department of Gastroenterology, Makassed General Hospital, Beirut, Lebanon |
