1. Patient Safety Enhancement Program, University of Michigan and Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan (V.M.V.)
2. Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania (J.E.S.)
3. Clinical Microbiology Laboratory, Department of Pathology, Michigan Medicine, Ann Arbor, Michigan (D.W.N.)
4. Care Excellence, Ascension Healthcare, St. Louis, Missouri (M.G.F.)