Affiliation: | 1. Department of Plastic Reconstructive and Aesthetic Surgery, American University of Beirut Medical Center, Beirut, Lebanon;2. Department of Internal Medicine Outcomes Research Unit, American University of Beirut Medical Center, Beirut, Lebanon;3. Department of Otolaryngology and Head and Neck Surgery, American University of Beirut Medical Center, Beirut, Lebanon;4. Department Pathology and Laboratory Medicine, American University of Beirut Medical Center, Beirut, Lebanon |