1. Department of Psychiatry, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA;
2. Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA;
3. VA Maryland Health Care System, Baltimore, MD, USA;
4. Department of Surgery, Geisel School of Medicine at Dartmouth, Hanover, NH, USA;
5. Department of Medicine, Geisel School of Medicine at Dartmouth, Hanover, NH, USA;
6. The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH, USA