ECG of the month.
D000818:Animals; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000209:etiology / Q000662:veterinary*; D004562:Electrocardiography / Q000662:veterinary*; D006734:Horse Diseases / Q000175:diagnosis*; D006736:Horses; D006947:Hyperkalemia / Q000150:complications / Q000662:veterinary; D014497:Urachus