1. Department of Clinical Sciences, Pediatrics Umeå University Umeå Sweden
2. Department of Pediatrics Sollefteå Hospital Sollefteå Sweden
3. National Childhood Obesity Centre Karolinska University Hospital Stockholm Sweden
4. Division of Pediatric Endocrinology, Department of Women's and Children's Health Karolinska Institutet Stockholm Sweden
5. Department of Research and Development Västernorrland County Council Sundsvall Sweden