(LONDON TELEGRAPH) — Chemotherapy could allow cancer to spread, and trigger more aggressive tumours, a new study suggests.
Researchers in the US studied the impact of drugs on patients with breast cancer and found medication increases the chance of cancer cells migrating to other parts of the body, where they are almost always lethal.
Around 55,000 women are diagnosed with breast cancer in Britain every year and 11,000 will die from their illness.
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