title: Pathogenesis and natural course of unstable angina--a prospective and retrospective study.
mesh_terms: D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology / Q000209:etiology; D011446:Prospective Studies; D012189:Retrospective Studies