1. Research Unit for General Practice, Department of Public Health University of Southern Denmark Odense C Denmark
2. Research Unit for Dietary Studies at the Parker Institute Bispebjerg and Frederiksberg Hospital Copenhagen Denmark
3. Department of Clinical Research University of Southern Denmark Odense Denmark
4. Odense Patient Data Explorative Network Odense University Hospital Odense Denmark
5. The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography, Institute of Public Health University of Southern Denmark Odense Denmark
6. The Boden Institute of Obesity, Nutrition Exercise and Eating Disorders University of Sydney Australia
7. The National Institute of Public Health University of Southern Denmark Denmark
8. Department of Public Health, Section for General Practice University of Copenhagen Denmark
9. Institute of Public Health, Department of Nursing Science University of Aarhus Denmark