FIRST-TRIMESTER BIOCHEMICAL SCREENING FO
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E. CASALS; A. FORTUNY; J. G. GRUDZINSKAS; Y. SUZUKI; B. TEISNER; C. COMAS; C. SA
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Article
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1996
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John Wiley and Sons
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English
⚖ 550 KB
Biochemical screening for Down syndrome (DS) is well established in the second trimester of pregnancy, but there is little information available on its value in the first trimester. This study describes our preliminary results with biochemical screening for DS in the first trimester of pregnancy in