title: Hard and soft data on treatment of left main coronary lesions.
mesh_terms: D001161:Arteriosclerosis / Q000209:etiology; D001026:Coronary Artery Bypass; D003326:Coronary Circulation; D003327:Coronary Disease / Q000188:drug therapy / Q000401:mortality / Q000601:surgery*; D006801:Humans; D012306:Risk