1. Department of Paediatric Endocrinology; Charité University Children's Hospital; Berlin Germany
2. German Center for Growth, Development, and Health Encouragement during Childhood and Youth (‘DeuZ-W.E.G.’); Berlin Germany
3. Laboratory Medicine; Sana Klinikum Lichtenberg; Berlin Germany
4. Endokrinologikum Hamburg; Hamburg Germany
5. Department of Paediatrics; Sana Klinikum Lichtenberg; Berlin Germany
6. Institute for Medical Informatics; Charité University Medicine; Berlin Germany