5Hampl V, Jan H. Role of nitric oxide in the pathogenesis of chronic pulmonary hypertension[J]. Physiol Rev, 2000, 80(4) : 1337-1372.
6Katusic Z S, Schugel J, Cosentino F, et al. Endothelium-dependent contractions to oxygen-derived free radicals in the canine basilar artery[J]. Am J Physiol ( Heart Circ Physiol ) ,1993;264(3) :H859-H864.
7Lee S L, Wang W W, Finlay G A, et al. Serotonin stimulates mitogen activated protein kinase activity through the formation of superoxide anion[J]. Am J Physiol (Lung Cell Mol Physiol), 1999;277(2) : L282-L291.
8Valy SC,Olson L. Improvement in NYHA functional class 4 conge-tive heart failure patients with nifedipine:a hemodynamic evaluation[J]. Am J Med Sci,1988,295(3) :188-192.
10Valy SC,Olson L.Improvement in NYHA functional class 4 congestive heart failure patients with nifedipine:a hemodynamic evaluation[J].Am J Med Sci,1988,295(3):188-192.