[1] University of Balamand,Faculty of Medicine and Medical Sciences
[2] American University of Beirut Medical Center,Department of Internal Medicine
[3] Staten Island University Hospital,Department of Internal Medicine
[4] American University of Beirut Medical Center,Department of Family Medicine
[5] Epidemiological Surveillance Department,Department of Internal Medicine, Division of Infectious Diseases
[6] Ministry of Public Health,undefined
[7] Communicable Diseases Department,undefined
[8] Ministry of Public Health,undefined
[9] American University of Beirut Medical Center,undefined