Significance of extended sports cardiology screening of elite handball referees. oleh Orsolya Kiss, Mate Babity, Attila Kovacs, Judit Skopal, Hajnalka Vago, Balint Karoly Lakatos, Csaba Bognar, Reka Rakoczi, Mark Zamodics, Lorinc Frivaldszky, Anna Menyhart-Hetenyi, Zsofia Dohy, Csilla Czimbalmos, Liliana Szabo, Bela Merkely