1. Department of Public Health and Community Medicine, Section for Epidemiology and Social Medicine (EPSO); Institute of Medicine, Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
2. Department of Public Health and Community Medicine; Section for Primary Health Care, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
3. Research Unit for Dietary Studies; the Parker Institute and the Institute of Preventive Medicine, Bispebjerg and Fredriksberg Hospitals; the Capital Region Denmark
4. Research Centre for Prevention and Health; Glostrup University Hospital; Glostrup Denmark
5. National Institute of Public Health, University of Southern Denmark; Copenhagen Denmark
6. The Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders; Sydney Medical School, the University of Sydney; Sydney Australia