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. 1976 Mar;30(1):29-31.
doi: 10.1136/jech.30.1.29.

Twinning and anencephalus occurrence in relation to fetus-fetus interaction

J M Elwood

Twinning and anencephalus occurrence in relation to fetus-fetus interaction

J M Elwood. Br J Prev Soc Med. 1976 Mar.

Abstract

The hypothesis proposed by Knox (1970) that an anencephalic fetus arises from a fetus-fetus interaction between two dizygous twins predicts that the twinning rate, the population incidence of anencephalus, and the female proportion of anencephalics in a population should be positively interrelated. These associations were tested using Canadian data during a long period of time and over a large geographical area. The results did not support the hypothesis.

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References

    1. Am J Hum Genet. 1962 Dec;14:410-25 - PubMed
    1. Br J Prev Soc Med. 1973 Nov;27(4):236-41 - PubMed
    1. Dev Med Child Neurol. 1970 Apr;12(2):167-77 - PubMed

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