1 Medicine Service, Veterans Affairs Ann Arbor Healthcare System, and Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan.
2 Department of Internal Medicine, University of Michigan Medical School, and Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan.
3 Eisenberg Family Depression Center, University of Michigan, and Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan.
4 Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan.
5 Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan.
6 Medicine Service, Veterans Affairs Ann Arbor Healthcare System; Department of Internal Medicine, University of Michigan Medical School; and Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan.