1. Institute for Safe Medication Practices, Alexandria, Virginia
2. Milken Institute School of Public Health, Department of Epidemiology, The George Washington University, Washington, DC
3. The Center for Drug Safety and Effectiveness and Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
4. Department of Pharmacy, Johns Hopkins Hospital, Baltimore, Maryland
5. Division of General Internal Medicine, Johns Hopkins Medicine, Baltimore, Maryland
6. Department of Pharmacy, Johns Hopkins Health System, Baltimore, Maryland