1. Departments of Medicine (S.R., A.M.D., R.E.W.), Chicago, Illinois 60637
2. Pediatrics (S.R., R.E.W.), Chicago, Illinois 60637
3. Genetics (S.R.), The University of Chicago, Chicago, Illinois 60637
4. Department of Medicine (J.H.D.B., G.R.W.), Imperial College London, Hammersmith Campus, London W12 0NN, United Kingdom
5. Department of Clinical Sciences and Community Health (P.B.-P., L.P.), 20133 Milan, Italy
6. University of Milan, Fondazione Ca' Granda Policlinico (P.B.-P.), 20133 Milan, Italy
7. Instituto de Investigaciones Biomédicas (J.B.), Consejo Superior de Investigaciones Científicas-Universidad Autonoma de Madrid and Centro de Investigación Biomédica en Red de Enfermedades Raras, 28029 Madrid, Spain
8. Department of Medicine (G.B.), David Geffen School of Medicine, University of California at Los Angeles, California 90095
9. Wellcome-Medical Research Council Institute of Metabolic Science (K.C.), University of Cambridge, Cambridge CB2 0QQ, United Kingdom
10. Thyroidmanager and Endotext (L.J.D.G.), South Dartmouth, Massachusetts 02748
11. Raymond and Ruth Perelman School of Medicine (J.L.J.), University of Pennsylvania, Philadelphia, Pennsylvania 19104
12. Division of Endocrinology, Metabolism, and Molecular Medicine and Center for Genetic Medicine (P.A.K.), Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
13. Research Institute of Environmental Medicine (Y.M.), Nagoya University, Nagoya 466-8550, Japan
14. Istituto Auxologico Italiano (L.P.), 20133 Milan, Italy
15. Ecole Normale Supérieure de Lyon (J.S.), 69342 Lyon, France
16. Laboratory of Hormone Action, Singapore Institute of Clinical Sciences (P.M.Y.), Singapore 138669