1. Fred Hutchinson Cancer Research Center, Seattle, Washington.
2. Epidemiology and Biostatistics Division, University of Illinois–Chicago, Chicago, Illinois.
3. Department of Health Services, University of Washington, Seattle, Washington.
4. VA Puget Sound Health Care System, Seattle, Washington.
5. Department of Psychiatry & Behavioral Sciences, University of Washington, Seattle, Washington.
6. School of Social Work, University of Washington, Seattle, Washington.
7. Department of Psychology, University of Washington, Seattle, Washington.