1. Department of Physiology/Endocrinology Institute of Neuroscience and Physiology Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
2. Department of Pediatrics Gothenburg Pediatric Growth Research Center Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
3. Department of Pediatrics Halmstad Hospital Halmstad Sweden
4. Muvara bv Multivariate Analysis of Research Data Leiderdorp The Netherlands