[1] Gen Hosp Valjevo, Dept Internal Med & Invas Cardiol, Valjevo, Serbia
[2] Mil Med Acad, Clin Emergency Internal Med, Belgrade, Serbia
[3] Univ Def, Sch Med, Belgrade, Serbia
[4] Inst Pulm Dis Vojvodina, Novi Sad, Serbia
[5] Univ Novi Sad, Sch Med, Novi Sad, Serbia
[6] Clin Ctr Nis, Clin Cardiol, Nish, Serbia
[7] Univ Nis, Sch Med, Nish, Serbia
[8] Clin Ctr Banja Luka, Clin Cardiol, Banja Luka, Bosnia & Herceg
[9] Univ Banja Luka, Sch Med, Banja Luka, Bosnia & Herceg
[10] Univ Skopje, Sch Med Skopje, Clin Cardiol, Intens Care Unit, Skopje, North Macedonia
[11] Clin Ctr Zemun, Clin Cardiol, Belgrade, Serbia
[12] Univ Belgrade, Sch Med, Belgrade, Serbia
[13] Clin Ctr Podgorica, Clin Cardiol, Podgorica, Montenegro
[14] Univ Podgorica, Sch Med, Podgorica, Montenegro
[15] Clin Ctr Kragujevac, Clin Cardiol, Kragujevac, Serbia
[16] Univ Kragujevac, Sch Med, Kragujevac, Serbia
[17] Mil Med Acad, Clin Cardiol, Belgrade, Serbia