1. John Wennberg ( ) is director of the Center for the Evaluative Clinical Sciences and the Peggy Y. Thomson Professor for the Evaluative Clinical Sciences at Dartmouth Medical School in Hanover, New Hampshire. Elliott Fisher is senior associate at the Veterans Affairs (VA) Outcomes Group in White River Junction, Vermont, and a professor of medicine and of community and family medicine at Dartmouth Medical School. Laurence Baker is an associate professor of health services research and policy at...