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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Hamlett G W. Human Twinning in the United States: Racial Frequencies, Sex Ratios, and Geographical Variations. Genetics. 1935 May;20(3):250–258. doi: 10.1093/genetics/20.3.250. [DOI] [PMC free article] [PubMed] [Google Scholar]
- WATERHOUSE J. A. H. Twinning in twin pedigrees. Br J Soc Med. 1950 Oct;4(4):197–216. doi: 10.1136/jech.4.4.197. [DOI] [PMC free article] [PubMed] [Google Scholar]