1. Nell Hodgson Woodruff School of Nursing, Emory University , Atlanta, Georgia
2. Department of Anesthesiology, Duke University , Durham, North Carolina
3. Defense and Veterans Center for Integrative Pain Management, Department of Anesthesiology, Uniformed Services University , Bethesda, Maryland
4. The Henry M. Jackson Foundation for the Advancement of Military Medicine , Rockville , Maryland
5. Department of Anesthesiology, Naval Medical Center San Diego , San Diego, California, USA