title: ECG of the Month.
authors.forename: Rebecca
authors.initials: R
authors.lastname: Kennerly
authors.forename: Seung Woo
authors.initials: SW
authors.lastname: Jung
mesh_terms: D000818:Animals; D003692:Delayed-Action Preparations; D004283:Dog Diseases / Q000175:diagnosis*; D004285:Dogs; D004562:Electrocardiography / Q000662:veterinary*; D005260:Female; D012804:Sick Sinus Syndrome / Q000175:diagnosis / Q000662:veterinary*; D013806:Theophylline / Q000008:administration & dosage / Q000627:therapeutic use; D014665:Vasodilator Agents / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D003692:Delayed-Action Preparations; D014665:Vasodilator Agents; D013806:Theophylline