Thomas J. A. Lehman, MD, FAAP, FACR, is Senior Scientist, Attending Physician, and Chief, Division of Pediatric Rheumatology, Hospital for Special Surgery, and Professor of Clinical Pediatrics, Weill Medical College of Cornell University. He is a fellow of both the American Academy of Pediatrics and the American College of Rheumatology and a member of the New York Academy of Medicine. He lives in New York City.