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Coital rates and dizygotic twinning

Published online by Cambridge University Press:  31 July 2008

William H. James
William H. James
Affiliation:
Galton Laboratory, University CollegeLondon
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Extract

There is some evidence, mostly of an epidemiological nature, that coital rates may be positively associated with dizygotic twinning. It is suggested that this link is causal, in which case an explanation becomes available for some curious—and hitherto unexplained—features of dizygotic twinning rates by maternal age and legitimacy.

Type
Research Article
Information
Journal of Biosocial Science , Volume 4 , Issue 1 , January 1972 , pp. 101 - 105
Copyright
Copyright © 1972, Cambridge University Press

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