| Affiliation: | 1. Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California, USA;2. Department of Nutrition, Faculty of Medicine, University of Oslo, Oslo, Norway;3. UCLA Center for Health Policy Research, University of California, Los Angeles, Los Angeles, California, USA;4. California Center for Population Research, University of California, Los Angeles, Los Angeles, California, USA;5. Department of Community Medicine and Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway;6. Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway;7. Division for Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway |
