Enough is known about the causes of breast cancer to make a vaccine or prophylactic drug a real possibility, a leading cancer expert said last night.
Professor Valerie Beral of Oxford University, who leads the Million Women's Study into the causes of the disease, told the Guardian the study had put beyond doubt what had long been guessed - that many breast cancers are caused by the absence of hormonal changes connected with childbirth.
Tuesday, Jun 09th
Last update07:52:22 AM GMT
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