1. Laurence Baker () is a professor of health research and policy at Stanford University in Stanford, California. Elliott Fisher is a professor of medicine and of community and family medicine, Dartmouth Medical School, and director of the Center for Health Policy Research at the Dartmouth Institute for Health Policy and Clinical Practice, in Hanover, New Hampshire. John Wennberg is the Peggy Y. Thomson Professor in the Evaluative Clinical Sciences at Dartmouth, and director emeritus of the institute.