1. Center for Outcomes Research and Evaluation, Yale New Haven Hospital, New Haven, CT (S.E., J.M., H.M.K., Y.W.).
2. Section of Cardiovascular Medicine (H.M.K., Y.W.), Department of Internal Medicine, Yale School of Medicine, New Haven, CT.
3. Agency for Healthcare Research and Quality (D.R., N.E.), both from the United States Department of Health and Human Services, Rockville, MD.
4. Defense Health Agency, Falls Church, Virginia (N.E.).
5. University of Connecticut School of Medicine, Farmington, CT (M.L.M.).
6. Section of General Internal Medicine (D.H.G.), Department of Internal Medicine, Yale School of Medicine, New Haven, CT.
7. Hartford Healthcare, Trumbull, CT (A.A.P.).
8. St. Vincent’s Hospital, Bridgeport, CT (A.A.P.).
9. Office of the National Coordinator for Health Information Technology (D.H.), both from the United States Department of Health and Human Services, Rockville, MD.
10. Department of Health Care Policy, Harvard Medical School, Boston, MA (S.-L.T.N.).
11. Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA (S.-L.T.N.).
12. Department of Health Policy and Management, Yale School of Public Health, New Haven, CT (H.M.K.).