[1] Dept Internal Med III, Cardiol Innsbruck, Innsbruck, Austria
[2] Acad Hosp Feldkirch, Dept Intervent Cardiol, Feldkirch, Austria
[3] LKH Klagenfurt, Dept Internal Med 2, Klagenfurt, Austria
[4] Wilhelminen Hosp, Dept Med Cardiol & Emergency Med 3, Vienna, Austria
[5] Hosp Barmherzig Bruder Eisenstadt, Dept Med, Eisenstadt, Austria
[6] Med Univ Graz, Dept Cardiol, Graz, Austria
[7] Gen Hosp Wels, Div Cardiol & Intens Care, Dept Internal Med, Wels, Austria
[8] LKH Graz West, Hosp Moedling, Dept Cardiol & Intens Care Med, Dept Internal Med, Graz, Austria
[9] Hosp Barmherzige Schwestern Linz, Dept Internal Med Cardiol, Linz, Austria
[10] Rudolfstiftung Hosp, Dept Internal Med 2, Vienna, Austria