Estimating a woman's risk of having a pregnancy associated with Down's syndrome using her age and serum alpha-fetoprotein level
Cuckle HS, Wald NJ, Thompson SG. 1987. Estimating a woman's risk of having a pregnancy associated with Down's syndrome using her age and serum alpha-fetoprotein level. Br J Obstet Gynaecol 94: 387-402.
The frequency of chromosome abnormalities detected in consecutive newborn studies-differences between studies-results by sex and by severity of phenotypic involvement
Hook EB, Porter IH (eds). Academic Press: New York
Hook EB, Hamerton JL. 1977. The frequency of chromosome abnormalities detected in consecutive newborn studies-differences between studies-results by sex and by severity of phenotypic involvement. In Population Cytogenetics: Studies in Humans, Hook EB, Porter IH (eds). Academic Press: New York; 63-79.
Trisomy 18 and maternal serum and amniotic fluid alpha-fetoprotein
Lindenbaum RH, Ryynanen M, Holmes-Siedle M, Puhakainen E, Jonasson J, Keenan J. 1987. Trisomy 18 and maternal serum and amniotic fluid alpha-fetoprotein. Prenat Diagn 7: 511-519.
Accuracy of expected risk of Down syndrome using the second-trimester triple test
Meier C, Huang T, Wyatt PR, Summers AM. 2002. Accuracy of expected risk of Down syndrome using the second-trimester triple test. Clin Chem 48: 653-655.
Risk-based prenatal screening for trisomy 18 using alpha-fetoprotein, unconjugated oestriol and human chorionic gonadotropin
Palomaki GE, Haddow JE, Knight GJ, et al. 1995. Risk-based prenatal screening for trisomy 18 using alpha-fetoprotein, unconjugated oestriol and human chorionic gonadotropin. Prenat Diagn 15: 713-723.