Permanent His-bundle pacing: seeking physiological ventricular pacing. - Barba-Pichardo R; Moriña-Vázquez P; Fernández-Gómez JM; Venegas-Gamero J; Herrera-Carranza M (Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2010)