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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Smithells R. W. Incidence of congenital abnormalities in Liverpool, 1960-64. Br J Prev Soc Med. 1968 Jan;22(1):36–37. doi: 10.1136/jech.22.1.36. [DOI] [PMC free article] [PubMed] [Google Scholar]
