1. Division of Endocrinology and the Hallett Center for Diabetes and Endocrinology (R.J.S.), Alpert Medical School of Brown University, Providence, Rhode Island 02903
2. Massachusetts General Hospital (D.M.N.), Harvard Medical School, Boston, Massachusetts 02114
3. Children’s Hospital (S.A.A.), University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213
4. Endocrinology (L.G.), Lund University, 20502 Malmo, Sweden
5. Mayo Clinic (R.A.R.), Rochester, Minnesota 55905
6. Medical Genetics (J.I.R.), Cedars-Sinai Medical Center, Medicine, Pediatrics, and Human Genetics, University of California Los Angeles, Los Angeles, California 90048