1. Veterans Affairs Pittsburgh Health Care System MIRECC & Behavioral Health Service, 7180 Highland Dr., Pittsburgh, PA 15206, USA.
2. Western Psychiatric Institute & Clinics, University of Pittsburgh Medical Center, 3811 O’Hara St Pittsburgh, PA 15213, USA
3. The Institute for Palliative Medicine at The San Diego Hospice, 4311 Third Avenue, San Diego, CA 921034, USA
4. Veterans Affairs San Diego Health Care System, San Diego, Department of Psychiatry, University of California, San Diego, CA 92161, USA