4[5]Ong CY,Liao AW,Spencer K,et al.First trimester maternal serum free beta human chorionic gonadotrophin and pregnancy associated plasma protein A as predictors of pregnancy complications[J].BJOG,2000,107(10):1265-1267. 被引量:1
5[6]Merviel P,Muller F,Guibourdenche J,et al.Correlations between serum assays of human chorionic gonadotrophin(hCG) and human placental lactogen(hPL) and pre-eclampsia or intrauterine growth restriction(IUGR) among nulliparas younger than 38 years[J].Eur J Obstet Gynecol Reprod Biol,2001,95(1):59-61. 被引量:1
6[7]Lepage N,Chitayat D,Kingdom J,et al.Association between second-trimester isolated high maternal serum maternal serum human chorionic gonadotrophin levels and obstetic complications in singleton and twin pregnancies[J].Am J Obstet Gynecol,2003,188(5):1354-1356. 被引量:1
6[1]Wald NJ,Densem JW,Smith D,et al. Four mark serum screening for Down's syndrome. Prenet Diagn, 1994,14: 707. 被引量:1
7[2]Pedersen NB,Alfthan H,Arends J,et al. A newsimple and rapid assay for AFP and the free β-hCG -subsuit of hCG in screening for Down's syndrome. Clin Genet, 1994,45 : 1. 被引量:1
8[3]Haddow JE. Prenatal screening for open neural tube defect Down's syndrome and other major fetal disorder. Semin Perinatol, 1990,14:488. 被引量:1
9[4]Rattle S. J. New separation method for monoclonal immunoradiometric assays and its application to assays for thyrotropin and human choriogonadotropin. Clin Chem, 1984,30:1457 ~ 1462. 被引量:1
10Yoon BH, Romero R, Kim C, et al. Amniotic fluid inte rleukin-6:A sensitive test for antenatal dignosis of acute inflammatory lesions of preterm placenta and prediction of perinatal morbidity. Am J Obstet Gynecol, 1995,172:960-970. 被引量:1