1. OPEN–Odense Patient Data Explorative NetworkDepartment of Clinical ResearchUniversity of Southern Denmarkand Odense University HospitalOdenseDenmark
2. National Institute of Public HealthUniversity of Southern DenmarkCopenhagenDenmark
3. The Research Unit of General PracticeInstitute of Public HealthUniversity of Southern DenmarkOdenseDenmark
4. Department of MedicineHolbæk HospitalHolbækDenmark