Institute of Clinical Medicine, University of Tromso, Tromso, Norway. rasmus.goll@unn.no|Institute of Clinical Medicine, University of Tromso, Tromso, Norway. rasmus.goll@unn.no|Institute of Clinical Medicine, University of Tromso, Tromso, Norway. rasmus.goll@unn.no|Institute of Clinical Medicine, University of Tromso, Tromso, Norway. rasmus.goll@unn.no