1. Department of Physics, University of Oslo , 0316 Oslo , Norway
2. Faculty of Ecology and Natural Resource Management, Norwegian University of Life Sciences , 1432 Ås, Oslo , Norway
3. Department of Clinical and Biomedical Engineering, Oslo University Hospital , 0372 Oslo , Norway
4. Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences , 1432 Ås, Oslo , Norway
5. Animalia, Norwegian Meat and Poultry Research Center , 0513 Oslo , Norway