A-V block in Prinzmetal's angina.
D000787:Angina Pectoris / Q000150:complications*; D000788:Angina Pectoris, Variant / Q000150:complications* / Q000175:diagnosis; D001283:Atrioventricular Node; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis / Q000209:etiology*; D006801:Humans