1. Department of Anesthesiology, University of Rochester School of Medicine, Rochester, New York
2. F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
3. Department of Surgery, University of Vermont College of Medicine, Burlington
4. Department of Public Health Sciences, University of Rochester School of Medicine, Rochester, New York
5. Center for Health Policy Research, Department of Medicine, University of California, Irvine
6. RAND Health, RAND Corp, Boston, Massachusetts