1. J. Frank Wharam ( ) is an assistant professor in the Department of Population Medicine at Harvard Medical School and the Harvard Pilgrim Health Care Institute, in Boston, Massachusetts.
2. Fang Zhang is an assistant professor in the Department of Population Medicine at Harvard Medical School and the Harvard Pilgrim Health Care Institute.
3. Bruce E. Landon is a professor in the Department of Health Care Policy, Harvard Medical School.
4. Stephen B. Soumerai is a professor in the Department of Population Medicine at Harvard Medical School and the Harvard Pilgrim Health Care Institute.
5. Dennis Ross-Degnan is an associate professor in the Department of Population Medicine at Harvard Medical School and the Harvard Pilgrim Health Care Institute.