1. Center for HIV/AIDS Care and Research, Boston Univsersity Medical Center, Boston, Massachusetts.
2. Dimagi, Cambridge, Massachusetts.
3. Biostatistics Consulting Group, Boston University, Boston, Massachusetts.
4. Department of Pharmacy, LifeCare Program of Clarian Health, Indianapolis, Indiana.
5. Department of Health Policy and Management, Center for Health Quality, Outcomes and Economic Research, Boston University School of Public Health, Boston, Massachusetts.
6. Department of Pharmacy, Massachusetts General Hospital, Bostone, Massachusetts.