1. Veterans Affairs (VA) Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
2. Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
3. Department of Health Management and Policy, University of Michigan School of Public Health, Ann Arbor
4. University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor
5. Center for Bioethics and Social Sciences in Medicine, University of Michigan Medical School, Ann Arbor
6. Department of Health Policy and Administration, University of Illinois at Chicago
7. Institute for Social Research, University of Michigan, Ann Arbor
8. Salt Lake City VA Center for Informatics Decision Enhancement and Surveillance, Salt Lake City, Utah
9. Department of Population Health Sciences, University of Utah, Salt Lake City