1. Gothenburg Pediatric Growth Research Center, Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
2. MVZ Praxis im Chilehaus, Pediatric Endocrinology, Andrology, Internal Medicine, and Sexual Medicine, Hamburg, Germany
3. Department of Physiology/Endocrinology, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
4. Institute of Clinical Science, Department of Pediatrics, Umeå University, Umeå, Sweden
5. Department of Women's and Children's Health, Division of Pediatric Endocrinology, Karolinska Institutet, Stockholm, Sweden
6. Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
7. Department of Pediatrics, Halland Hospital, Halmstad, Sweden