title: ECG of the month. Spikes. Cardiac pacemaker rhythm.
authors.forename: J I
authors.initials: JI
authors.lastname: Martinez-Lopez
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D010138:Pacemaker, Artificial