A prospective study of the independent e
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D. A. Leon
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Article
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1989
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John Wiley and Sons
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French
โ 605 KB
The independent effects of parity and age at first birth on breast cancer incidence are investigated in a I% sample of women aged 16 to 59 from the 1971 Census of England and Wales. Over the period 1971-81, 1,003 breast cancer cases occurred in the cohort of 113,263 women who were either married, wi