1. Hospice Services, Providence Medical Group, Olympia, WA, USA,
2. Providence Medical Group, Olympia, WA, USA
3. Department of Psychology, University at Albany State University of New York, Albany, NY, USA
4. University of California, San Francisco, CA, USA
5. Physical Medicine and Rehabilitation, The Rusk Institute of Rehabilitation Medicine, New York University, USA
6. Department of Psychiatry, Harvard Medical School, USA, Massachusetts Mental Health Center, Boston, MA, USA