Åsvold, Bjørn Olav, Norwegian University of Science and Technology, NTNU, Levanger, Norway; K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway; Department of Endocrinology, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway; 7Department of Community Medicine and Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway, Norway