[1] Copenhagen Univ Hosp, Rigshosp, Lab Clin Pharmacol, Copenhagen, Denmark
[2] Aarhus Univ, Inst Human Genet, DK-8000 Aarhus, Denmark
[3] Copenhagen Univ Hosp, Rigshosp, Ctr Heart, Dept Cardiol, Copenhagen, Denmark
[4] Copenhagen Univ Hosp, Gentofte Hosp, Dept Cardiol, Gentofte, Denmark