[Percutaneous transluminal coronary angioplasty (PTCA): a report of 4 cases].
D000328:Adult; D000787:Angina Pectoris / Q000628:therapy*; D000800:Angioplasty, Balloon; D017023:Coronary Angiography; D003331:Coronary Vessels; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care