title: Atrial pacemaker function and left bundle branch block.
mesh_terms: D002037:Bundle-Branch Block / Q000175:diagnosis*; D003327:Coronary Disease / Q000175:diagnosis; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006801:Humans; D008875:Middle Aged; D010138:Pacemaker, Artificial