1. Division of Endocrinology, Gerontology and Metabolism, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA.
2. Princeton University, Princeton, New Jersey, USA.
3. Diatech Diabetes, Inc., Memphis, Tennessee, USA.
4. Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, California, USA.
5. Division of Pediatric Endocrinology, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA.