1 Robert Wood Johnson Foundation Clinical Scholars Program, Yale School of Medicine, New Haven, Conn.
2 Robert Wood Johnson Foundation Clinical Scholars Program, Yale School of Medicine, New Haven, Conn; Center for Outcomes Research (CORE), Yale-New Haven Hospital, New Haven, Conn; Department of Health Policy and Management, Yale School of Public Health, New Haven, Conn; Section of General Internal Medicine, Department of Medicine, Yale School of Medicine, New Haven, Conn.