title: Invited commentary.
authors.affiliation: Policlinico A. Gemelli, Department of Cardiac Surgery, Università Cattolica, L.go A Gemelli 1, Rome, 00168 Italy. mgaudino@tiscali.it
authors.forename: Mario
authors.initials: M
authors.lastname: Gaudino
authors.forename: Gianfederico
authors.initials: G
authors.lastname: Possati
mesh_terms: D017023:Coronary Angiography; D001026:Coronary Artery Bypass / Q000379:methods*; D006801:Humans; D008323:Mammary Arteries / Q000502:physiology*; D017534:Radial Artery / Q000502:physiology*; D016032:Randomized Controlled Trials as Topic; D012501:Saphenous Vein / Q000502:physiology*