title: Reversible heart block in acute leukemia.
mesh_terms: D000208:Acute Disease; D000328:Adult; D004562:Electrocardiography; D005500:Follow-Up Studies; D006327:Heart Block / Q000209:etiology / Q000473:pathology / Q000532:radiotherapy*; D006329:Heart Conduction System / Q000473:pathology / Q000528:radiation effects; D006801:Humans; D004915:Leukemia, Erythroblastic, Acute / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000150:complications* / Q000473:pathology / Q000532:radiotherapy; D008297:Male; D009362:Neoplasm Metastasis