1. Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine
2. Armstrong Institute for Patient Safety and Quality, School of Medicine, Bloomberg School of Public Health, Whiting School of Engineering
3. Department of Pediatrics, Division of Pediatric Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore
4. Division of Healthcare-Associated Infections, Center for Quality Improvement and Patient Safety, Agency for Healthcare Research and Quality, Rockville, Maryland
5. Geriatric Research Education and Clinical Center, Louis Stokes Cleveland Veterans Affairs Medical Center
6. Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, Cleveland, Ohio