1. Division of Pediatric Endocrinology and Diabetes (M.W., F.G.R., P.-M.H.), Christian-Albrechts University, 24105 Kiel, Germany
2. Division of Endocrinology and Diabetology (H.-P.S.) University Children’s Hospital, 80337 Munich, Germany
3. Department of Pediatrics, Institute of Medical Informatics and Statistics (J.H.), Christian-Albrechts University, 24105 Kiel, Germany
4. Division of Pediatric Endocrinology (H.G.D.), Department of Pediatrics and Adolescent Medicine, Friedrich-Alexander-University of Erlangen-Nürnberg, 91054 Erlangen, Germany
5. University-Children’s Hospital (G.B.), Division of Pediatric Endocrinology, 72076 Tübingen, Germany
6. University Children’s Hospital (J.H.B.), Division of Pediatric Endocrinology, 48149 Münster, Germany
7. Charité, Institute for Experimental Pediatric Endocrinology (H.K.), 13353 Berlin, Germany
8. Endokrinologikum Ruhr (A.R.-U.), Medizinisches Versorgungszentrum für Hormon- und Stoffwechselerkrankungen, 44866 Bochum, Germany
9. Department of Pediatric Endocrinology and Diabetes (M.N.), University of Medical Sciences, 60-637 Poznań, Poland
10. Institutes of Reproductive Medicine (J.G.) University of Münster, 48129 Münster, Germany
11. Division of Medical Sciences (N.K.), Institute of Biomedical Research, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom