| Many women are prescribed drugs as part of their breast cancer treatment. The type of drug and dosage will vary from patient to patient depending on her medical situation. |
| A new use for the breast cancer drug Herceptin has been approved by the FDA, a move that means more treatment options for the 25 percent of breast cancer patients with early-stage HER-2 positive breast cancer. |
| Environmental factors and breast cancer. Several hormonal factors have been studied for their role in causing breast cancer, such as reproductive history and postmenopausal hormone replacement therapy. |
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