title: [Changes in PTCA in candidates for coronary artery bypass grafting].
mesh_terms: D000800:Angioplasty, Balloon; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000601:surgery / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged