[1] Tampere Univ, Sch Med, Dept Biochem Med, FIN-33014 Tampere, Finland
[2] Tampere Univ Hosp, Dept Internal Med, Tampere, Finland
[3] Univ Helsinki, Dept Clin Pharmacol, SF-00250 Helsinki, Finland
[4] Tampere Univ Hosp, Dept Clin Chem, Lab Atherosclerosis Genet, Ctr Lab Med, Tampere, Finland
[5] Diabor Ltd, Oulu, Finland
[6] Turku Univ, Turku Pet Ctr, Turku, Finland
[7] Natl Publ Hlth Inst, Oulu, Finland