1. Department of General Surgery, Lebanese American University Medical Center-Rizk Hospital (LAUMCRH), Beirut, Lebanon
2. Department of Gastroenterology, Lebanese American University Medical Center-Rizk Hospital (LAUMCRH), Beirut, Lebanon
3. Department of Obstetrics and Gynecology, Lebanese American University Medical Center-Rizk Hospital (LAUMCRH), Beirut, Lebanon
4. Department of Internal Medicine, Lebanese American University Medical Center-Rizk Hospital (LAUMCRH), Beirut, Lebanon