[1] Elisabethinen Hosp Linz, Dept Med 1, A-4020 Linz, Austria
[2] Med Univ Graz, Div Angiol, Dept Internal Med, Graz, Austria
[3] Med Univ Vienna, Dept Emergency Med, Vienna, Austria
[4] Clin Wels Grieskirchen, Div Cardiol, Dept Internal Med 2, Wels, Austria
[5] Med Univ Vienna, Div Cardiol, Dept Internal Med 2, Vienna, Austria
[6] Municipal Hosp Hietzing Rosenhugel, Inst Lab Med, Vienna, Austria
[7] Med Univ Vienna, Dept Cardiothorac & Vasc Anaesthesia & Crit Care, Vienna, Austria
[8] Med Univ Vienna, Dept Internal Med 1, Vienna, Austria
[9] Landesklinikum Wiener Neustadt, Dept Surg, Wiener Neustadt, Austria
[10] Landesklinikum Thermenreg Modling, Dept Internal Med, Modling, Austria
[11] Med Univ Vienna, Dept Orthopaed, Vienna, Austria
[12] Donauspital, Dept Cardiol, Sozialmed Zentrum Ost, Vienna, Austria
[13] Med Univ Graz, Div Cardiol, Dept Internal Med, Graz, Austria