1. Department of Clinical ScienceUniversity of Bergen Bergen Norway
2. Department of PediatricsStavanger University Hospital Stavanger Norway
3. Centre for Clinical Research, Haukeland University Hospital Bergen Norway
4. Department of Global Public Health and Primary CareResearch Group for Lifestyle Epidemiology, University of Bergen Bergen Norway
5. Laboratory of AnthropogeneticsVrije Universiteit Brussel (VUB) Brussels Belgium
6. Department of Public HealthKatholieke Universiteit Leuven Belgium
7. Department of PediatricsHaukeland University Hospital Bergen Norway