[1] Univ Amsterdam, Acad Med Ctr, Dept Cardiol, NL-1105 AZ Amsterdam, Netherlands
[2] Univ Basel Hosp, CH-4031 Basel, Switzerland
[3] Civil Hosp Brescia, Brescia, Italy
[4] Hosp Badalona Germans Trias & Pujol, Badalona, Barcelona, Spain
[5] Univ Roma La Sapienza, I-00185 Rome, Italy
[6] CCM, Berlin, Germany