title: ECG of the Month.
authors.forename: James S
authors.initials: JS
authors.lastname: Mathews
authors.forename: Amanda E
authors.initials: AE
authors.lastname: Coleman
authors.forename: Clarke E
authors.initials: CE
authors.lastname: Atkins
mesh_terms: D000818:Animals; D001145:Arrhythmias, Cardiac / Q000209:etiology / Q000662:veterinary*; D004283:Dog Diseases / Q000628:therapy*; D004285:Dogs; D004562:Electrocardiography / Q000662:veterinary*; D005260:Female; D010138:Pacemaker, Artificial / Q000662:veterinary*