Trial Treatment · Heart Care Foundation
University Clinical Centre of Serbia-Department for invasive electrophysiology, Belgrade · KBC Bezanijska Kosa-Cardiology Department, Belgrade · KBC Zemun-Cardiology Department, Belgrade · University Clinical Centre of Serbia-Emergency centre, Belgrade · Institute for Cardiovascular Diseases Dedinje-Pacemaker and electrophysiology department, Belgrade · University Clinical Centre of Serbia-Department for cardiac arrhythmias, Belgrade · University Clinical Centre of Kragujevac-Cardiology Department, Kragujevac · University Clinical Centre of Nis-Cardiology Department, Niš