1. Department of Clinical Biochemistry; Herlev and Gentofte Hospital; Copenhagen University Hospital; Herlev Denmark
2. The Copenhagen General Population Study; Herlev and Gentofte Hospital; Copenhagen University Hospital; Herlev Denmark
3. Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen N Denmark
4. The Copenhagen City Heart Study; Frederiksberg Hospital; Copenhagen University Hospital; Frederiksberg Denmark