1. University of Michigan Medical School and Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan (J.M., S.S.)
2. University of Michigan School of Nursing, Ann Arbor, Michigan (M.M.)
3. Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan (K.E.F.)
4. University of Michigan Medical School, Ann Arbor, Michigan (J.M.A.)
5. University of Rochester Highland Hospital, Rochester, New York (L.G.)
6. Health Research & Educational Trust, American Hospital Association, Chicago, Illinois (S.C., J.B.)