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CUMC researchers have found direct evidence of a link between prenatal vitamin A deficiency and postnatal airway hyperresponsiveness, a hallmark of asthma.

In most cases of ALS, a toxin released by cells that normally nurture neurons in the brain and spinal cord can trigger loss of the nerve cells affected in the disease, report Columbia researchers.

Mailman School researchers report that HIV-positive men whose moods improved were more likely to have safe sex than they would normally.