1. John Wennberg ( ) is director of the Center for the Evaluative Clinical Sciences and the Peggy Y. Thomson Professor for Evaluative Professor for Evaluative Clinical Sciences at Dartmouth Medical School in Hanover, New Hampshire. Elliott Fisher is codirector of the Veterans Affairs (VA) Outcomes Group, VA Medical Center, in White River Junction, Vermont. Thérèse Stukel is a senior scientist and research director at the Institute for Clinical Evaluative Sciences in Toronto, Ontario. Sandra Sharp...