As techniques have been refined, interest in personalized mouse models of disease has risen, writes Andrew Pollack at The New York Times. While the use of such avatars has not been proven to affect patient outcomes and is expensive, Pollack says that some cancer patients are still trying that approach to learn more about how their cancers, implanted into mice, react to different drugs.

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Cancer researcher loses funding under new Wellcome Trust anti-bullying policies, the Guardian reports.

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