M. A. Jackson

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A. Agbata1
A. O. Williams1
E. B. Chung1
1A. Agbata
1A. O. Williams
1E. B. Chung
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Forty Africans from Nigeria and 89 American negroes with colorectal polyps were analysed by age, sex and type of polyp. The Nigerians were much the younger group (mostly under 20 years of age, whereas most of the American negroes were over 50) and far fewer of their polyps were truly neoplastic (7.5% compared with 87% of the Americans). These differences(More)
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