2Plamer RM, Ferrige AG, Moncada S. Nitric oxide release accounts for the biological activity of endothelial - derived relaxant factor. Nature, 1987,327:524.
3Seligman SP, Nishiwaki T, Kadner SS, et al. Hypoxia stimulates ecNOS mRNA expression by differentiated human trophoblasts. Ann NY Acad Sci, 1997,828 : 180.
4Myatt L,Brewer AS,Langolon G,et al. Attenuation of the vasoconstrictor of the thromboxane and endothelin by nitric oxide in the human fetal placental circulation. Am J Obstet Gynecol ,1992 ,166 :224.
5Morris NH, Sooranna SR, Learmout JG, et al. Nitric oxide synthase activities in placental tissue from normotensive, pre - eclamptic and growth retarded pregnancies. Br J Obstet Gynecol, 1995,102:711.
6Smith GN, Brien JF. Use of nitroglycerin for uterine relaxation. Obstet Gynecol Surv, 1998,53:559.
7Baha M, Sibai MD, Brian M, et al. Aggressive versus expectant management of severe preeclampsia at 28 to 32 week's gestation:a randomized controlled trial. Am J Obstet Gynecol,1994,171:818.
8乐杰.妇产科学（第5版）[M].北京:人民卫生出版社,2001.139.
9Knerr I, Dachert C, Beinder E, et al. Adrenomedullin,calcitonin gene-related peptide and their receptors: evidence for a decreased placental mRNA content in preeclampsia and HELLP syndrome [J]. Eur J Obstet Gynecol Reprod Biol,2002, 101 (1): 47-53.
10Di Iorio R, Marinoni E, Letizia C, et al. Adrenomedullin, a new vasoactive peptide, is increased in preeclampsia [J].Hypertension, 1998, 32 (4): 758-763.
