1. Department of ChemistryBiotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
2. Oslo Centre of Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway
3. Institute of Health and SocietyUniversity of Oslo, Oslo, Norway
4. Department of Animal and Aquacultural SciencesNorwegian University of Life Sciences, Ås, Norway