1. Military Performance Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts, USA
2. School of Health & Rehabilitation Sciences, MGH Institute of Health Professions, Boston, Massachusetts, USA
3. John A. Feagin Sports Medicine Fellowship, Keller Army Hospital, United States Military Academy, West Point, New York, USA
4. Department of Physical Medicine and Rehabilitation, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA