Full text
PDF





Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Wald N. J., Cuckle H. S., Densem J. W., Nanchahal K., Royston P., Chard T., Haddow J. E., Knight G. J., Palomaki G. E., Canick J. A. Maternal serum screening for Down's syndrome in early pregnancy. BMJ. 1988 Oct 8;297(6653):883–887. doi: 10.1136/bmj.297.6653.883. [DOI] [PMC free article] [PubMed] [Google Scholar]
