1. W. G. (Bill) Hefner VA Healthcare System, Salisbury, NC, USA
2. VA Mid-Atlantic (VISN 6) Mental Illness Research, Education, and Clinical Center (MIRECC), Durham, NC, USA
3. Wake Forest School of Medicine, Winston-Salem, NC, USA
4. Texas Tech University, Lubbock, TX, USA
5. Dwight D. Eisenhower Veteran Affairs Medical Center, Eastern Kansas Veteran Healthcare System, Leavenworth, KS, USA
6. Munson Army Health Center, Fort Leavenworth, KS, USA