1. American University of Beirut Medical Center; Department of Anesthesiology; Riad El-Solh / Beirut 1107 2020 Beirut Lebanon
2. American University of Beirut Medical Center; Faculty of Medicine; Bliss, Riad El-Solh P.O.Box 11-0236 Beirut Lebanon
3. St Elizabeth's Medical Center; Department of Surgery; 736 Cambridge Street Brighton MA USA 02135
4. American University of Beirut Medical Center; Department of Internal Medicine; Riad El Solh St Beirut Lebanon