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First trimester markers of trisomy 21 and the influence of maternal cigarette smoking status.
Spencer K, Ong CYT, Liao AWJ, Papademetriou D, Nicolaides KH.
Prenat Diagn 2000;20:852-3. -
The influence of parity and gravidity on first trimester markers of chromosomal abnormality.
Spencer K, Ong CYT, Liao AWJ, Papademetriou D, Nicolaides KH.
Prenat Diagn 2000;20:792-4. -
First trimester prenatal diagnosis of trisomy 21 in discordant twins using fetal nuchal translucency thickness and maternal serum free beta-hCG and PAPP-A.
Spencer K, Nicolaides KH.
Prenat Diagn 2000;20:683-4. -
The influence of fetal sex in screening for trisomy 21 by fetal nuchal translucency, maternal serum free beta-hCG and PAPP-A at 10-14 weeks of gestation.
Spencer K, Ong CY, Liao AW, Papademetriou D, Nicolaides KH.
Prenat Diagn 2000;20:673-5. -
First trimester maternal serum AFP and total hCG in aneuploidies other than trisomy 21.
Spencer K, Heath V, Flack N, Ong C, Nicolaides KH.
Prenat Diagn 2000;20:635-9. -
The influence of ethnic origin on first trimester biochemical markers of chromosomal abnormalities.
Spencer K, Ong CY, Liao AW, Nicolaides KH.
Prenat Diagn 2000;20:491-4. -
Maternal serum free beta-hCG and PAPP-A in fetal sex chromosome defects in the first trimester.
Spencer K, Tul N, Nicolaides KH.
Prenat Diagn 2000;20:390-4. -
Is maternal serum total hCG a marker of trisomy 21 in the first trimester of pregnancy?
Spencer K, Berry E, Crossley JA, Aitken DA, Nicolaides KH.
Prenat Diagn 2000;20:311-7. -
One stop clinic for assessment of risk for fetal anomalies: a report of the first year of prospective screening for chromosomal anomalies in the first trimester.
Spencer K, Spencer CE, Power M, Moakes A, Nicolaides KH.
BJOG 2000;107:1271-5. -
Semiquantitative immunohistochemical localisation of PAPP-A and beta-hCG in first trimester chorionic villi from euploid and trisomic pregnancies.
Sebire NJ, Roberts L, Nicolaides KH.
J Pathol 2000;192:30.