Patient Safety

From the Division of General Medicine and Primary Care, Department of Medicine (D.W.B.), and the Department of Surgery (A.A.G.), Brigham and Women's Hospital; the Center for Applied Medical Information Systems, Partners HealthCare System (D.W.B.); and Harvard Medical School (D.W.B., A.A.G.) - all in Boston. Address reprint requests to Dr. Bates at the Division of General Medicine and Primary Care, Brigham and Women's Hospital, 75 Francis St., Boston, MA 02115, or at [email protected].