1. VA Health Services Research & Development Center of Excellence, VA Ann Arbor Healthcare System, Ann Arbor, Michigan, Division of General Internal Medicine, University of Michigan, Ann Arbor, Michigan, Program for Improving Health Care Decisions, Ann Arbor, Michigan,
2. Program for Improving Health Care Decisions, Ann Arbor, Michigan, Department of Health Behavior and Health Education, School of Public Health, University of Michigan, Ann Arbor, Michigan
3. VA Health Services Research & Development Center of Excellence, VA Ann Arbor Healthcare System, Ann Arbor, Michigan, Division of General Internal Medicine, University of Michigan, Ann Arbor, Michigan, Program for Improving Health Care Decisions, Ann Arbor, Michigan