James F. Fries, MD, is Professor of Medicine, Emeritus, at Stanford University. His work involves the study of health outcomes and how to improve them, prevention of disease by reduction in health risks, self-care techniques, and health economics. He has published over 300 scientific articles and 11 books.
Donald M. Vickery, MD, helped develop the first medical decision charts for non-doctors. Formerly the head of the nonprofit Self-Care Institute, he died in 2008. Fries and Vickery also coauthored, with Robert H. Pantell, Taking Care of Your Child.