4Luisi S , Fiorio P, Reis FM, et al. inhibins in female and male reproductive physiology : role in garnet ogenesis, conception, implantation and early pregnancy. Hum Reprod Update. 2004, 23 ( 11 )
5Tong S, Rombauts L, Marjon A, et al. increased day 15 -17 serum pio-alphac inhibin leveis specific to successful pregnancy, J Clin Endocrinol Metab. 2004, 89 (9) : 4404
6Lambert- messerlian GM, pinar H, Laprade E. Inhibins and activins in human fetal abnormalities. MolCell Endocrinol. 2004, 15 (1 -2) : 101
7Wallace EM, Marjono B, Tyzack K, et al. First trimester levels of inhibins and activin A in normal and failing pregnancies. Clin Endocrinoi. 2004, 60 (4) : 484
8Spencer K, Tul N, Nicoiaides KH, et al. Maternal serum free β- HCG and PAPP - A in fetal sex chromosome defects in the first trimester. Prenat Diagn , 2000, 20 : 390
9Tul N, Spencer K, Noble P, et al. Screening for trisomy 18 by fetal nuchal translucency and maternal serum free β- HCG and PAPP - A at 10-14 weeks of gestating. Prenat Diagn, 1999, 19:1035
10Spencer K. The influence of fetal sex in screening for Down syndrome in the second trimester using AFP and free β-HCG. Prenat Oiagn, 2000, 20:648