Institution: | 1. Department of Pharmaceutical Health Services Research, School of Pharmacy, University of Maryland, , Baltimore, Maryland;2. Department of Epidemiology and Public Health, School of Medicine, University of Maryland, , Baltimore, Maryland;3. Division of Cardiology, Department of Medicine, School of Medicine, University of Maryland, , Baltimore, Maryland;4. Veterans Affairs Maryland HealthCare System, , Baltimore, Maryland;5. GlaxoSmithKline, , Durham, North Carolina |