[1] Fac Hosp, Brno, Czech Republic
[2] Gen Fac Hosp, Prague, Czech Republic
[3] Masaryk Univ, St Annes Fac Hosp, Dept Internal Med Cardioangiol 1, Brno, Czech Republic
[4] Charles Univ Prague, Fac Med 3, Fac Hosp Kralovske Vinohrady, Cardioctr, Prague, Czech Republic
[5] Bata Reg Hosp Zlin, Zlin, Czech Republic
[6] Palacky Univ, Fac Med & Dent, Dept Internal Med Cardiol 1, CR-77147 Olomouc, Czech Republic