1 Corporal Michael J Crescenz VA Medical Center, Center for Health Equities Research and Promotion, Philadelphia, PA 19104, United States.
2 Defense & Veterans Center for Integrative Pain Management, Rockville, MD 20852, United States.
3 School of Nursing, University of Pennsylvania, Philadelphia, PA 19104, United States.
4 Nell Hodgson Woodruff School of Nursing, Atlanta, GA 30322, United States.
5 Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, United States.
6 Department of Anesthesiology, School of Medicine, Uniformed Services University of Health Sciences, Bethesda, MD 20814, United States.
7 Duke University Medical Center, Durham, NC 27710, United States.
8 Department of Military and Emergency Medicine, School of Medicine, Uniformed Services University of Health Sciences, Bethesda, MD 20814, United States.
9 Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA 02111, United States.