1. Centre for Bone and Arthritis Research Department of Internal Medicine and Clinical Nutrition Institute of Medicine The Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
2. Department of Pediatrics Institute of Clinical Sciences The Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
3. Region Västra Götaland Research and Development Primary Health Care and Kungshöjd Pediatric Clinic Gothenburg Sweden
4. Bioinformatics Core Facility The Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
5. School Health Services The City of Gothenburg Sweden
6. Hallands Hospital Halmstad Department of Pediatrics Halmstad Sweden
7. Region Västra Götaland Department of Drug Treatment Sahlgrenska University Hospital Gothenburg Sweden
8. Region Västra Götaland Pediatric Clinical Research Center Sahlgrenska University Hospital Gothenburg Sweden