| Affiliation: | 1. Department of Pediatrics, Division of Medical Genetics University of California–San Francisco San Francisco CA USA;2. San Francisco VA Healthcare System San Francisco CA USA;3. VA HSR&D Center for the Study of Healthcare Innovation Implementation and Policy Los Angeles CA USA;4. VA Greater Los Angeles Healthcare System Los Angeles CA USA;5. Department of Surgery David Geffen School of Medicine at UCLA Los Angeles CA USA;6. VA Salt Lake City Healthcare System Salt Lake City UT USA;7. Department of Health Policy & Management UCLA Fielding School of Public Health Los Angeles CA USA;8. Department of Psychiatry and Biobehavioral Sciences David Geffen School of Medicine at UCLA Los Angeles CA USA;9. VA Boston Healthcare System Boston MA USA;10. VA Cooperative Studies Program Epidemiology Center Durham NC USA;11. Duke University School of Medicine Durham NCUSA;12. Department of Medicine, Division of Epidemiology University of Utah Salt Lake City UT USA;13. William S. Middleton Memorial Veterans Hospital Madison WI USA;14. Department of Surgery University of Wisconsin School of Medicine and Public Health Madison WI USA |
