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Screening for Down’s syndrome:effects, safety, and cost effectiveness of first and second trimester strategies. Gilbert RE,Augood C,Ades AE,et al. British Medical Journal . 2001
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Screening for Down’s syndrome using first-trimester ultrasound and second-trimester maternal serum markers in a low-risk population: a prospective longitudinal study. Audibert F,Dommergues M,Benattar C,et al. Ultrasound in Obstetrics and Gynecology . 2001
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First-trimester Down’s syndrome screening using dried bolld biochemistry and unchal translucency. Krantz DA,Hallahan TW,Orlandi F,et al. Obstetrics and Gynecology . 2000
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Antenatal screening for Down’s syndrome. Wald NJ,Kennard A,Hackshaw A,et al. Health Technology Assessment Reports . 1998
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PRENATAL DIAGNOSIS[P]. 英国专利:GB9024049D0,1990-12-19
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Neuronal target genes of the neuronrestrictive silencer factor in neurospheres derived from fetuses with Down’s syndrome: a gene expression study. Bahn S,Mimmack M,Ryan M,et al. The Lancet . 2002
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PRENATAL DIAGNOSIS[P]. 英国专利:GB9024049D0,1990-12-19
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Second trimester screening for Down’s syndorme: 7 years experience. Beaman JM,Goldie DJ. Journal of Medical Screening . 2001
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Biochemical screening for Down’s syndrome. Cuckle H. European Journal of Obstetrics Gynecology and Reproductive Biology . 2000