5Foerher J J, Disease of the large Intestine:Differential diagnosis and surgical management[J]. Vet Clin North Am(Large Animal Pract ), 1982,4: 129-146.
6Yanagisawa Y. A novel potent vasoconstrictor peptide produced by vascular endothelial cells [J]. Nature, 1988,332 : 411.
7Ssito T,Yanagisawa Y,Miyauchi T. Endothelin in human circulating blood : Effects of major surgical stress[J]. Jpn J Phmacol 1989,49:215.
8Celermajer D S,Sorensen K E,Gooch V M. Non-invasive detection of endothelial dysfunction in children and adults at risk of atherosclerosis[J].Lancet,1992.340:1 111-1 115.
9Ross R. Atherosclerosis-an inflammatory disease[J]. N Engl J Med, 1999,340:115-126.
10Stewart D J ,Levy R D,Cernacek P. Increase plasm a endothelin-1 in pulmonary hypertensiont Marker or mediat or of diease? [J]. Ann Intern Med, 1991,114 : ,464.