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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Nicolaides K. H., Azar G., Byrne D., Mansur C., Marks K. Fetal nuchal translucency: ultrasound screening for chromosomal defects in first trimester of pregnancy. BMJ. 1992 Apr 4;304(6831):867–869. doi: 10.1136/bmj.304.6831.867. [DOI] [PMC free article] [PubMed] [Google Scholar]