Department of Ophthalmology (MBN), Jordanian Royal Medical Services, Amman; Department of Neurology (AMY), Jordan University of Science and Technology, Irbid, Jordan; Department of Neurology (MQAS), Kansas University Medical Center, Kansas City; Department of Internal Medicine (AA), St. Elizabeth's Medical Center, Boston, MA; Department of Internal Medicine (HZ), Cleveland Clinic, OH; Department of Internal Medicine (DAA), Henry Ford Health System, Detroit, MI; Department of Internal Medicine (RRH), JCESOM, Marshall University, WV; Department of Clinical Sciences (ME-G), College of Medicine, University of Houston, HCA Northwest Medical Center, Houston, TX; and Department of Neurology (MA-R), George Washington University, Washington, DC.