What we know of breast cancer drugs may be spin & bias

The Current

A senior scientist at a Toronto Cancer Centre who examined 164 drug trials for breast cancer treatment over a 16 year period says as many as two-thirds showed a bias in the way they reported adverse or negative effects and in how they tried to make the study look more positive than it was. We hear from Dr. Ian Tannock and from other doctors immersed in the oversight and publication of clinical trials.

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