1. United States Army Special Operations Command , Fort Liberty, NC 28310, USA
2. CU Anschutz Center for COMBAT Research, Department of Emergency Medicine, University of Colorado School of Medicine , Aurora, CO 80045, USA
3. Division of Biostatistics, Department of Family Medicine & Public Health, University of California San Diego , La Jolla, CA 92093, USA
4. University of Washington School of Nursing , Seattle, WA 98195, USA
5. University of Delaware School of Nursing , Newark, DE 19713, USA
6. Matthew Gfeller Center, Department of Exercise and Sport Science, The University of North Carolina , Chapel Hill, NC 27599, USA
7. Veterans Affairs Northwest Mental Illness Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System , Seattle, WA 98108, USA
8. Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine , Seattle, WA 98259, USA