[1] Univ Clin Ctr Serbia, Pacemaker Ctr, Belgrade, Serbia
[2] Univ Belgrade, Fac Med, Belgrade, Serbia
[3] Clin Pasteur, Heart Rhythm Dept, F-31076 Toulouse, France
[4] Univ Ziekenhuis Brussel VUB, Heart Rhythm Management Ctr, Brussels, Belgium
[5] INSERM, U970, F-75908 Paris 15, France
[6] Maastricht Univ, Dept Physiol, Maastricht, Netherlands
[7] Epicura Ctr Hosp, Hornu, Belgium
[8] Univ Hosp Ctr Split, Dept Cardiovasc Dis, Split, Croatia
[9] Fdn Cardioctr Ticino, Cardiol Dept, Lugano, Switzerland
[10] Univ Hosp Geneva, Cardiol Dept, Cardiac Pacing Unit, Rue Gabrielle Perret Gentil 4, CH-1205 Geneva, Switzerland