WARE, JOHN*,†,‡; KOSINSKI, MARK*; KELLER, SUSAN*
*From The Health Institute, New England Medical Center, Boston, Massachusetts.
†From the School of Medicine, Tufts University, Boston, Massachusetts.
‡From the School of Public Health, Harvard University, Boston, Massachusetts.
Address correspondence to: John E. Ware, Jr., PhD, The Health Institute, New England Medical Center, #345, 750 Washington Street, Boston, MA 02111.