1. Department of Biochemistry Svendborg Hospital , OUH , Svendborg , Denmark
2. Biochemistry Department , Svendborg Hospital , Svendborg , Syddanmark , Denmark
3. Department of Clinical Research , University of Southern Denmark , Odense , Syddanmark , Denmark
4. Department of Public Health, Research Unit of General Practice , University of Southern Denmark , Odense , Syddanmark , Denmark