Page last updated at 07:09 GMT, Wednesday, 31 March 2010 08:09 UK

Breast cancer survivor: 'Screening helped save my life'

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Breast cancer screening does more good than harm, with any over-treatment justified by the number of lives saved, a study of 80,000 women has concluded.

Mammograms can spot dangerous tumours, but might also detect lumps that are essentially harmless, exposing some women to undue anxiety and surgery.

This has led to a debate among experts about the benefits of breast screening.

Cancer survivor Gwen Lovell told the BBC that screening had helped saved her life.

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