1. 1Division of Pediatric Endocrinology and DiabetesDepartment of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
2. 2Mediagnost GmbHReutlingen, Germany
3. 3Division of Pediatric Endocrinology and DiabetesDepartment of Pediatrics and Adolescent Medicine, University of Tübingen, Tübingen, Germany
4. 4Institute of Pharmacology and ToxicologyUniversity Medical Center Ulm, Ulm, Germany
5. 5Institute of Laboratory MedicineClinical Chemistry and Molecular Diagnostics, University of Leipzig, Leipzig, Germany