6Schandies RP,Grimes J,Duvis D,et al.Epidermal growth factor in rat gastroentesttinal tract tissue:Effect of age and fasting[J].Gsatroenterol,1988,94:403.
7Shigeta K,Hiramatsu Y,Eguchi K,et al.Urinary and plasma epidermal growth factor levels are decreased in neonates with intrauterine growth retardation and in their mother[J].Biol-Nconate,1992,62 (2-3):76.
8Peters TJ,Chapman BM,Wolfe MW,et al.Placental lactogen-1 gene activation in diffetentiating trophoblast cells,extrinsic and intrinsic regulation involving mitogen-activated protein kinade singaling pathways[J].J Endocrin,2000,165 (2):443-456.
9Krishnamurthy P,Bird IM,Sheppard C,et al.Effects of angiogenic growth factors on endothelium delivered prostacydin production by ovine uterine and placental arteries[J].Prostaglandins Other Ligid Mediar,1999,57(1):1-12.
10Das C,Kumar VS,Gupta S,et al.Net work of cytokine,integrines and hormones in human trophoblast cells[J].J Repord Immunol,2002,53 (1-2):257-268.