title: Electrical alternans in supraventricular tachycardia.
mesh_terms: D002283:Carcinoma, Bronchogenic / Q000150:complications; D004562:Electrocardiography; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications; D008297:Male; D008875:Middle Aged; D013610:Tachycardia / Q000175:diagnosis* / Q000209:etiology