1. Department of Internal Medicine (T.M.A., K.S., S.L. Krein, B.K.N., B.T.), University of Michigan Medical School, Ann Arbor.
2. Department of Internal Medicine, Veteran Affairs Ann Arbor Healthcare System, MI (R.S.).
3. Department of Family Medicine (T.C.G.), University of Michigan Medical School, Ann Arbor.
4. Department of Emergency Medicine (S.L. Kronick, J.P.), University of Michigan Medical School, Ann Arbor.
5. Department of Internal Medicine, Saint Luke’s Health System, Kansas City, MO (P.S.C.).
6. Veterans Affairs Ann Arbor Center for Clinical Management Research, MI (S.L. Krein, M.H., B.K.N.).