1. Digestive Disease Centre, Bispebjerg and Frederiksberg Hospital; University of Copenhagen; Copenhagen Denmark
2. Centre for Clinical Research and Prevention; Bispebjerg and Frederiksberg Hospital; Copenhagen Denmark
3. National Institute of Public Health; University of Southern Denmark; Copenhagen Denmark
4. Section of Epidemiology; Department of Public Health; University of Copenhagen; Copenhagen Denmark
5. Department of Epidemiology Research; Statens Serum Institut; Copenhagen Denmark
6. The Novo Nordisk Foundation Center for Basic Metabolic Research; University of Copenhagen; Copenhagen Denmark