title: Percutaneous transluminal coronary angioplasty: view of a single relatively high frequency operator.
mesh_terms: D000800:Angioplasty, Balloon / Q000592:standards*; D003406:Credentialing; D005069:Evaluation Studies as Topic; D006801:Humans; D009316:National Institutes of Health (U.S.); D014481:United States