1. Johns Hopkins University School of Medicine; Department of Anesthesiology and Critical Care Medicine; and Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine; Baltimore Maryland
2. Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine; The Johns Hopkins University School of Medicine; Departments of Anesthesiology and Critical Care Medicine, and Surgery; Johns Hopkins Bloomberg School of Public Health, Department of Health Policy and Management; and Johns Hopkins University School of Nursing; Baltimore Maryland