Evidence based policy making
BMJPublished 28 October 2004Open access
J. A. Muir Gray
Citations179
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MedicineHealth Professions
Health Technology AssessmentFirst and second trimester antenatal screening for Down's syndrome: the results of the Serum, Urine and Ultrasound Screening Study (SURUSS)
585 Citations2003Nicholas Wald, Charles H. Rodeck +4 more
The matching criteria were gestation (using an ultrasound crown–rump length or biparietal diameter measurement), duration of storage, and centre, and Screening performance of the individual markers and combinations of markers together with maternal age was assessed.