Increased tissue endothelin-1-like immunoreactivity in the internal mammary artery of patients with diabetes or hypercholesterinemia modulates the graft flow in the per-operative period. - Göbel,H.; Ihling,C.; Dentz,J.; Schaefer,H.E.; Zeiher,A.M.; Fraedrich,G. (Eur J Cardiothorac Surg, 1998)