title: Demonstration of diffuse conduction disturbance in sick sinus syndrome utilizing simultaneous His bundle electrogram and timed vectorcardiogram.
mesh_terms: D001146:Arrhythmia, Sinus / Q000175:diagnosis / Q000503:physiopathology*; D002036:Bundle of His / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014672:Vectorcardiography