Improvement of the outcome of the saphenous vein graft when connected to the internal thoracic artery Tekijä Katsavrias, K, Prapas, S, Calafiore, AM, Taggart, D, Angouras, D, Iliopoulos, D, Di Mauro, M, Papandreopoulos, S, Zografos, P, Dougenis, D