1. Department of Gynaecology and Obstetrics; Odense University Hospital; Odense Denmark
2. Institute of Clinical Research, Unit of Gynaecology and Obstetrics; University of Southern Denmark; Odense Denmark
3. Clinical Pharmacology, Department of Public Health; University of Southern Denmark; Odense Denmark
4. Department of Public Health, Section for Epidemiology; Aarhus University; Aarhus Denmark
5. Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Denmark, and Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospitals - Part of Copenhagen University Hospital, Copenhagen, Denmark, and MRC Integrative Epidemiology Unit; Bristol University; Bristol U.K.
6. Department of Rheumatology; Copenhagen University Hospital Gentofte; Gentofte Denmark