An evaluation of the combination of medical and surgical therapy in the treatment of unstable angina.
D000787:Angina Pectoris / Q000628:therapy*; D000789:Angina, Unstable / Q000601:surgery / Q000628:therapy*; D004185:Disability Evaluation; D005500:Follow-Up Studies; D006801:Humans; D007902:Length of Stay; D008875:Middle Aged; D009203:Myocardial Infarction / Q000517:prevention & control