administration alone or in conjunction with other hormone^.^,' This information is important from a clinical and public health standpoint to the extent that it is also applicable to women. We focus our attention on women, because the estimated number of new breast cancer cases for 1993 in the United States is 183,000 in women compared with 1000 in men, a ratio approaching 200 to l.5 Hormonal Risk Factors The female breast is subject to a lifetime of hormonal controls, whose effect is evident at the…
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