1. Department of Pharmacy, The Johns Hopkins Hospital, Baltimore, Maryland.
2. Department of Pharmacy, Orlando Regional Medical Center, Orlando, Florida
3. Antimicrobial Stewardship Program, The Johns Hopkins Hospital, Baltimore, Maryland.
4. Departments of Surgery, Anesthesiology, Critical Care Medicine, and Nursing, Johns Hopkins University Schools of Medicine and Nursing, Baltimore, Maryland.
5. Department of Hospital Epidemiology and Infection Control, The Johns Hopkins Hospital, Baltimore, Maryland.