Polysaccharopeptide enhances the anticancer activity of doxorubicin and etoposide on human breast cancer cells ZR-75-30

Breast cancer is one of the most frequent cancers in the world (1), and it is the commonest cancer amongst women (1,2). The mortality of breast cancer is low (1), however, because of its high incidence and the increasing global trend (1,3,4), it results in medical costs worldwide estimated to be more than.

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