1. Center for Health Professions Education, The Uniformed Services University, Bethesda, MD 20814, USA
2. The Henry M Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD 20817, USA
3. Department of Health, Human Function, and Rehabilitation Sciences, The George Washington University School of Medicine and Health Sciences, Washington, DC 20037, USA
4. Daniel K. Inouye Graduate School of Nursing, Uniformed Services University, Bethesda, MD 20814-4712, USA