1. K.G. Jebsen Centre for Genetic Epidemiology, Faculty of Medicine and Health Sciences, Department of Public Health and Nursing, Norwegian University of Science and Technology (NTNU) , Postboks 8905 , N-7491 Trondheim, Norway
2. Department of Circulation and Medical Imaging, Norwegian University of Science and Technology (NTNU) , Trondheim , Norway
3. Department of Mathematical Sciences, Norwegian University of Science and Technology (NTNU) , Trondheim , Norway
4. deCODE genetics/Amgen Inc. , Reykjavik , Iceland
5. MRC Integrative Epidemiology Unit, University of Bristol , Bristol BS8 1TH , UK
6. Population Health Science, Bristol Medical School , Bristol BS8 1TH , UK
7. Avon Longitudinal Study of Parents and Children , Bristol BS8 1TH , UK
8. Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU) , Trondheim , Norway
9. School of Engineering and Natural Sciences, University of Iceland , Reykjavik , Iceland
10. Faculty of Medicine, University of Iceland , Reykjavik , Iceland
11. HUNT Research Centre, Department of Public Health and Nursing, Norwegian University of Science and Technology , Levanger , Norway
12. Department of Innovation and Research, St. Olavs Hospital , Trondheim , Norway