1. Department of Immunobiology, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, U.K.
2. Divisions of Human Genetics and Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA
3. Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
4. Institute for Diabetes, Obesity and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
5. Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA