1. Division of Pediatric Endocrinology and Diabetology (C.K., S.A.W.), 35385 Giessen, Germany
2. Steroid Research and Mass Spectromity Unit (C.K., M.F.H., S.A.W.), Center of Child and Adolescent Medicine, Justus Liebig University, 35385 Giessen, Germany
3. Rambam Medical Center (Z.H.), Faculty of Medicine and Research Institute, Technion Israel, Institute of Technology, Division of Pediatric Endocrinology, Meyer Children's Hospital, Haifa 31096, Israel
4. Department of Nutrition and Health (T.R.), Research Institute of Child Nutrition, 45711 Dortmund, Germany