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On Celiac Awareness Day, gastroenterologist Benjamin Lebwohl, MD, of Columbia's Celiac Disease Center answered questions about the disease on Twitter.

Scientists have found compounds that can block transmission of the parasite that causes malaria and reduce resistance to currently available drugs.

Cancer immunotherapy drugs only work for a minority of patients, but a generic drug now used to increase blood flow may be able to improve those odds, a study by Columbia University Medical Center researchers suggests.