title: Unstable angina pectoris. Natural history, hemodynamics, uncertainties of treatment and the ethics of clinical study.
mesh_terms: D000787:Angina Pectoris / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D002986:Clinical Trials as Topic; D004992:Ethics, Medical; D006439:Hemodynamics; D006801:Humans; D009203:Myocardial Infarction / Q000517:prevention & control