TWINNING IN YORUBA WOMEN
@article{Knox1960TWINNINGIY, title={TWINNING IN YORUBA WOMEN}, author={G. Knox and D. Morley}, journal={BJOG: An International Journal of Obstetrics & Gynaecology}, year={1960}, volume={67} }
IN a study of the birth weights of Yoruba babies born in hospital at Ilesha, West Nigeria, we noted (Morley and Knox, 1960) that 159 of 2,973 women, 5.3 per cent, had multiple pregnancies. There was one set of triplets, the remainder being twins, so that 10.1 per cent of all newborn infants were from multiple pregnancies. This was so much greater than the proportion expected in European populations that we decided to examine the matter further and, in particular, to examine those selective… Expand
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