Many postmenopausal women quit breast cancer drugs early because of side effects
 

Why do so many postmenopausal women who are treated for estrogen-sensitive breast cancer quit using drugs that help prevent the disease from recurring? The first study to actually ask the women themselves -- as well as the largest, most scientifically rigorous study to examine the question -- reports 36 percent of women quit early because of the medications' side effects, which are more severe and widespread than previously known.

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