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Vitamin B supplements reduced negative effects of fine particle pollution on the heart and immune system, a small pilot study has found.

More nurse practitioners are becoming primary care providers, a trend that Columbia Nursing helped begin when the school opened a clinic two decades ago.

The new director of Columbia's Stem Cell Initiative talks about stem cells and aging, the hope for stem cell therapies, and her plans for stem cell research at Columbia.

Columbia University scientists study tumor revertants as possible new approach to cancer therapy.