1. The Ohio State University, Columbus, Ohio
2. Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, Maryland
3. Section on Endocrinology and Genetics, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
4. Johns Hopkins Community Physicians at Suburban Hospital, Bethesda, Maryland
5. Division of Pediatric Endocrinology and Diabetes, University of California, San Francisco, San Francisco, California
6. Institut Cochin, Centre National de la Recherche Scientifique (CNRS), INSERM, Université Paris Descartes, Paris, France
7. Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi
8. Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts