The human breast cancer cell line MCF-7 does not require estrogen for growth, but paradoxically its growth is inhibited by antiestrogens.
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Growth of the human breast cancer cell line MCF-7 is enhanced by androgens, but only at pharmacological concentrations.
We are now beginning an era in which primary and secondary systemic therapies for breast cancer can be based on sound biologic principles.
Gender differences in the presentation and management of social anxiety disorder may be influenced by fluctuations in levels of endogenous or exogenous reproductive hormones.
Controversy exists regarding the relationship of the degree of c-erbB-2 amplification to other prognostic factors in breast cancer.