LETTER TO THE EDITOR. ULTRASOUND DATING
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A. BORRELL; M. T. FARRÉ; D. COSTA; A. FORTUNY
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Article
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1996
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John Wiley and Sons
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English
⚖ 125 KB
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Ultrasound dating in first-trimester biochemical screening for Down syndrome We have read with interest the article by Macintosh ef al. (1995) which describes the effects of ultrasound estimation of gestational age on the performance of first-trimester biochemical screening for fetal aneuploidy. I