Effect of first-trimester nuchal translucency on second-trimester maternal serum biochemical screening for Down's syndrome. (Q44988999)
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(P31) (Q13442814)
(P50) (Q45633986)
(P304) 261-264
(P407) (Q1860)
(P433) 4
(P478) 10
(P577) Wednesday, October 1, 1997
(P1433) (Q1817048)
(P1476) "Effect of first-trimester nuchal translucency on second-trimester maternal serum biochemical screening for Down's syndrome" (language: en)
(P2093) Slack A
Wathen NC