title: Ventricular fusion beats simulating bilateral, bundle branch block.
mesh_terms: D001146:Arrhythmia, Sinus / Q000150:complications; D002037:Bundle-Branch Block / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged