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Plasma placental RNA allelic ratio permits noninvasive prenatal chromosomal aneuploidy detection.
Lo YM, Tsui NB, Chiu RW, Lau TK, Leung TN, Heung MM, Gerovassili A, Jin Y, Nicolaides KH, Cantor CR, Ding C.
Nat Med 2007;13:218-23. -
Free fetal DNA in maternal circulation: a potential prognostic marker for chromosomal abnormalities?
Gerovassili A, Garner C, Nicolaides KH, Thein SL, Rees DC.
Prenat Diagn 2007;27:104-10. -
Noninvasive prenatal detection of fetal trisomy 18 by epigenetic allelic ratio analysis in maternal plasma: theoretical and empirical considerations.
Tong YK, Ding C, Chiu RW, Gerovassili A, Chim SS, Leung TY, Leung TN, Lau TK, Nicolaides KH, Lo YM.
Clin Chem 2006;52:2194-202. -
Cell-free DNA levels in pregnancies at risk of sickle-cell disease and significant ethnic variation.
Gerovassili A, Nicolaides KH, Thein SL, Rees DC.
Br J Haematol 2006;135:738-41. -
Detection of trisomy 21 by quantitative mass spectrometric analysis of single-nucleotide polymorphisms.
Tsui NB, Chiu RW, Ding C, El-Sheikhah A, Leung TN, Lau TK, Nicolaides KH, Lo YM.
Clin Chem 2005;51:2358-62. -
Comparison of protocols for extracting circulating DNA and RNA from maternal plasma.
Chiu RW, Lui WB, El-Sheikhah A, Chan AT, Lau TK, Nicolaides KH, Lo YM.
Clin Chem 2005;51:2209-10. -
First-trimester maternal serum activin A in pre-eclampsia and fetal growth restriction.
Ong CY, Liao AW, Munim S, Spencer K, Nicolaides KH.
J Matern Fetal Neonatal Med 2004;15:176-80. -
Evaluation of human chorionic gonadotropin beta-subunit mRNA concentrations in maternal serum in aneuploid pregnancies: A feasibility study.
Ng EK, El-Sheikhah A, Chiu RW, Chan KC, Hogg M, Bindra R, Leung TN, Lau TK, Nicolaides KH, Lo YM.
Clin Chem 2004;50:1055-7. -
Maternal serum activin A and inhibin A in trisomy 18 pregnancies at 10-14 weeks.
Spencer K, Liao AW, Ong CY, Flack NJ, Nicolaides KH.
Prenat Diagn 2001;21:571-4. -
Maternal serum levels of dimeric inhibin A in pregnancies affected by trisomy 21 in the first trimester.
Spencer K, Liao AW, Ong CY, Geerts L, Nicolaides KH.
Prenat Diagn 2001;21:441-4. -
Maternal serum levels of total activin-A in first-trimester trisomy 21 pregnancies.
Spencer K, Liao AW, Skentou H, Ong CY, Nicolaides KH.
Prenat Diagn 2001;21:270-3. -
Raised maternal serum inhibin A concentration at 10 to 14 weeks of gestation is associated with pre-eclampsia.
Sebire NJ, Roberts L, Noble P, Wallace E, Nicolaides KH.
BJOG 2000;107:795-7. -
Maternal serum inhibin-A and free beta-hCG concentrations in trisomy 21 pregnancies at 10-14 weeks of gestation.
Noble PL, Wallace EM, Snijders RJ, Groome NP, Nicolaides KH.
BJOG 1997;104:367-71.