1. Department of Medicine, Centra Health, Lynchburg, VA 24501, USA
2. Department of Internal Medicine, Adventist Health Community Care, Hanford, CA 93230, USA
3. University of Texas, Arlington, TX 76019, USA
4. Kaweah Delta Health Care District, Visalia, CA 93291, USA
5. Community Regional Medical Center, Fresno, CA 93721, USA