1. Department of Clinical Nutrition, Lovisenberg Diaconal Hospital, Oslo, Norway
2. Department of Nutrition, University of Oslo, Oslo, Norway
3. Department of Family Health Care Nursing, University of California, San Francisco, CA, USA
4. Department of Research and Development, Lovisenberg Diaconal Hospital, Oslo, Norway
5. Department of Research, Lovisenberg Diaconal Hospital, Oslo, Norway
6. Institute of Nursing Science, Department of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway