1. Department of Community Health Sciences, Boston University School of Public Health, Boston, Massachusetts.
2. Department of Health Law, Policy & Management, Boston University School of Public Health, Boston, Massachusetts.
3. Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts.
4. Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts.
5. Center for Healthcare Organization and Implementation Research, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts.