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Maternal serum–integrated screening for trisomy 18 using both first- and second-trimester markers |
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| Authors: | Glenn E Palomaki Louis M Neveux George J Knight James E Haddow |
| Institution: | Foundation for Blood Research, Scarborough, Maine, USA |
| Abstract: | |
| Keywords: | trisomy 18 prenatal screening pregnancy-associated plasma protein-A alpha-fetoprotein unconjugated estriol human chorionic gonadotropin |