Millions of women worldwide suffer from breast cancer. Scientists have developed a genomic test in a major breakthrough that can determine which patients will benefit from chemotherapy and who can actually skip it, according to recent trial results.

While the international study found that more than two-thirds of its participants could safely avoid chemotherapy and can be treated with hormone therapy alone.

Notably, a study led by University College London incorporated more than 4,000 newly diagnosed patients over the age of 40 in the........

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