1. Robert Wood Johnson Foundation Clinical Scholars Program and Department of Emergency Medicine, University of Michigan, Ann Arbor2Department of Veterans Affairs, VA Center for Clinical Management and Research, Ann Arbor VA Healthcare System, Ann Arbor, Mic
2. Department of Veterans Affairs, VA Center for Clinical Management and Research, Ann Arbor VA Healthcare System, Ann Arbor, Michigan3Departments of Internal Medicine and Neurology, University of Michigan, Ann Arbor
3. Michigan Department of Community Health, Lansing
4. Department of Epidemiology and Biostatistics, Michigan State University, East Lansing