1. University of Las Vegas Nevada School of Medicine, 1707 W. Charleston Blvd Suite, 230 Las Vegas, NV 89102, USA
2. Jordan University of Science and Technology, 3030 Ar-Ramtha, Jordan
3. Medstar Washington, 110 Irving St., NW Washington, D.C. 20010, USA
4. University of Florida, 1600 SW Archer Rd, Gainesville, FL 32608, USA
5. University at Buffalo, Erie County Medical Center, David K. Miller Building, 462 Grider St., Buffalo, NY 14215, USA
6. University of Nebraska Medical Center, 983332 Nebraska Medical Center, Omaha, NE 68198-3332, USA