This Alexis Grant/Chronicle Q&A column interviews one of the truly outstanding physicians who has made the Texas Medical Center one of the most extraordinary medical centers in the world — Dr. Ralph Feigin of Texas Children’s Hospital. Take a moment to review Dr. Feigin’s remarkable biography and the interview, and then take a moment to appreciate this man’s tremendous contribution to pediatric medicine in Houston over the past 30 years. It’s a legacy that will not soon be matched.