Aha! I found it. I don't actually have the article but this references a
reduction in risk for uterine cancers. Brock, K. E., Sexual,
Reproductive and Contraceptive Risk Factors for
Carcinoma-in Situ of the Uterine Cervix in Sydney. Medical Journal of
Australia,1989.
Mary Kay Smith, CLE, IBCLC
Romeoville, IL
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