6Vice GS, Johnson PI. Maternal - fetal immunobiology in normal pregnancy and its possible failure in recurrent spontaneous abortion . Hum Reprod , 1995, 10 (suppl 12): 107
7King A, Boocock C, Sharkry AI et al. Evidence for the expression of HLA A - G class I mRNA and protein by human first trimester trophoblast. J Immunol, 1996, 156:2068
8Hunts JS, Vassmer D, Tergusion TA et al. Fas - L is tranfficking of acti- vated leukocytes between mother and the conceptus. J Immunol, 1997, 158:4112
9Maripaule T, Vorarit SW, Kathleen H et al. Apoptosis in women placenta. J Gyneeol Obstete Invest, 2000, 20 : 88
10Satio S, SakaiM, SasakiY et al. Quantitative analysis of peripheral blood Th0, Thl, Th2 and Thl/Th2 cell ratio during normal human pregnancy and preeclampsia. Clin Exp Immunol, 1999, 117 : 550