[1] Leiden Univ, Med Ctr, Dept Cardiol, NL-2300 RC Leiden, Netherlands
[2] Leiden Univ, Med Ctr, Dept Endocrinol & Metab Dis, NL-2300 RC Leiden, Netherlands
[3] Leiden Univ, Med Ctr, Einthoven Lab Expt Vasc Med, NL-2300 RC Leiden, Netherlands
[4] Durrer Ctr Cardiogenet Res, Amsterdam, Netherlands
[5] Interuniv Cardiol Inst ICIN, Utrecht, Netherlands