title: Detection of trisomy 21 by quantitative mass spectrometric analysis of single-nucleotide polymorphisms.
authors.affiliation: Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Special Administrative Region, China.
authors.forename: Nancy B Y
authors.initials: NB
authors.lastname: Tsui
authors.forename: Rossa W K
authors.initials: RW
authors.lastname: Chiu
authors.forename: Chunming
authors.initials: C
authors.lastname: Ding
authors.forename: Ahmad
authors.initials: A
authors.lastname: El-Sheikhah
authors.forename: Tse N
authors.initials: TN
authors.lastname: Leung
authors.forename: Tze K
authors.initials: TK
authors.lastname: Lau
authors.forename: Kypros H
authors.initials: KH
authors.lastname: Nicolaides
authors.forename: Y M Dennis
authors.initials: YM
authors.lastname: Lo
mesh_terms: D000483:Alleles; D004314:Down Syndrome / Q000235:genetics*; D006262:Health; D006801:Humans; D007621:Karyotyping; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*