Healthy women who have a family history of breast cancer could be offered drugs on the NHS to cut their chances of contracting the disease.
Dr Hilary told ITV Daybreak that the offer of medication is a 'historic breakthrough' against cancer prevention.
Currently a draft consultation, he added that the challenge lies with the ability to roll these drugs out across the country.
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Donald Trump's son-in-law has denied any improper conduct during four contacts with Russians during and after the presidential election.