[1] Charite Univ Med Berlin, Dept Internal Med & Cardiol, Campus Virchow Klinikum,Augustenburgerpl 1, D-13353 Berlin, Germany
[2] Univ Milano Bicocca, Clin Res Unit, Viale Resistenza 23, I-20036 Meda, Italy
[3] Ist Auxol Italiano IRCCS, Viale Resistenza 23, I-20036 Meda, Italy
[4] Univ Clin Hosp Ctr Dr Dragisa Misovic Dedinje, Dept Cardiol, Heroja Milana Tepica 1, Belgrade 11000, Serbia
[5] Univ Milano Bicocca, Dept Med & Surg, Clin Med, I-20126 Milan, Italy
[6] Clin Ctr Serbia, Clin Cardiol, Koste Todorovic 8, Belgrade 11000, Serbia