2Rcsli MN , Zdid NS , Ibrahim ME . Fullterm and pre matu rely ruptured membranes: an ultastructural study. Cell Tissuercs , 1998;220 : 253.
3Macbeermott K. Amnitic membrane collagen content and type distbution in women with preterm premature rupture of membranes in pregnancy . Srj Obstet Gynecol,1998;105 : 369.
4Culler S , Kong L, Woznia K, et al. Reduction of extracellular matrix, protein expression in human amnion epithelial cells by glucocorticoids:a potentianl role in preterm rupture of the fetal membranes . Clin Endocriaolmretl, 1995; 80: 2244.
5Vadillo OF, Fbeltran MJ. Apoptisis and extyacellular matrix degradation in chorion-amnio daring lbor and per matare msmbrsne rupture . Gynecol Obstet Mex,1998;66: 202.