N. Nichole Barry, M.D., is an associate clinical professor in the department of sports medicine at Stanford University and a physician with Sports Orthopedic and Rehabilitation Medicine Associates in Menlo Park, California, who cares for many Stanford University teams and athletes as well as ones at Santa Clara University. Michael F. Dillingham, M.D., is a clinical professor of orthopedic and rehabilitation medicine at Stanford University and a physician for several teams, including the San Francisco 49ers. James L. McGuire, M.D., was chairman of the department of medicine at Mount Auburn Hosp...