1. Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy and
2. Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, Illinois;
3. Department of Epidemiology and
4. Center for Drug Safety and Effectiveness, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; and
5. Department of Obstetrics and Gynecology, University of Chicago, Chicago, Illinois