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Screening for Down syndrome at 14 weeks of pregnancy.
Wald NJ, Watt HC, Haddow JE, Knight GJ. Wald NJ, et al. Prenat Diagn. 1998 Mar;18(3):291-3. doi: 10.1002/(sici)1097-0223(199803)18:3<291::aid-pd244>3.0.co;2-8. Prenat Diagn. 1998. PMID: 9556047
Risk estimation in Down's syndrome screening.
Wald NJ, Hackshaw AK. Wald NJ, et al. Prenat Diagn. 1996 Nov;16(11):1055-7. doi: 10.1002/(SICI)1097-0223(199611)16:11<1055::AID-PD990>3.0.CO;2-B. Prenat Diagn. 1996. PMID: 8953642 No abstract available.
655 results