The role of ultrasound in screening for Down syndrome.
Resta
R G
RG
Swedish Hospital Medical Center, Seattle, WA 98104.
Nyberg
D
D
D004314:Down Syndrome / Q000000981:diagnostic imaging* / Q000453:epidemiology; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D011247:Pregnancy; D012680:Sensitivity and Specificity; D016216:Ultrasonography, Prenatal / Q000592:standards*