Absence of nasal bone in fetuses with trisomy 21 at 11-14 weeks of gestation: an observational study
- PMID: 12096709
Absence of nasal bone in fetuses with trisomy 21 at 11-14 weeks of gestation: an observational study
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Absence of nasal bone in fetuses with trisomy 21 at 11-14 weeks of gestation: an observational study.Lancet. 2001 Nov 17;358(9294):1665-7. doi: 10.1016/S0140-6736(01)06709-5. Lancet. 2001. PMID: 11728540
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