| Affiliation: | (1) Group Health Research Institute, 1730 Minor Avenue, Suite 1600, Seattle, WA 98101-1448, USA;(2) Department of Epidemiology, University of Washington, Seattle, WA, USA;(3) Department of Medicine, University of Washington, Seattle, WA, USA;(4) Department of Health Services, University of Washington, Seattle, WA, USA;(5) Department of Biostatistics, University of Washington, Seattle, WA, USA;(6) Seattle Epidemiology Research and Information Center, VA Puget Sound Health Care System, Seattle, WA, USA;(7) Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA |
