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OP23.01: A prospective study evaluating the performance of first trimester combined screening for trisomy 21 using repeated sampling of the maternal serum markers PAPP‐A and free β‐hCG
Author(s) -
Ekelund C. K.,
Wright D.,
Ball S.,
Kirkegaard I.,
Noergaard P.,
Joergensen F. S.,
Soerensen S.,
FriisHansen L.,
Toerring N.,
Bech B. H.,
Petersen O. B.,
Tabor A.
Publication year - 2012
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.11606
Subject(s) - medicine , trisomy , blood sampling , nuchal translucency , confidence interval , false positive rate , obstetrics , prospective cohort study , gynecology , aneuploidy , pregnancy associated plasma protein a , gestational age , pregnancy , fetus , first trimester , statistics , chromosome , biology , genetics , biochemistry , mathematics , gene