To Katherine A. Dettwyler, Ph.D.
Regarding
>...
>2 years lowers the risk before menopause by 40%
>6 years lowers the risk before menopause by 66%
>7 years lowers the risk of breast cancer throughout a woman's lifetime to
>almost zero
>
>Does any one know the reference for the last two statements????
The second one, according to Mothering Magazine, comes from J.M. Yuan et
al., "Risk Factors for Breast Cancer in Chinese Women in Shanghai," Cancer
Research 48 [1988]: 1949-1953.
I don't know where the third one comes from.
Susan Horein, [log in to unmask]