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Columbia dermatologist Larisa Geskin, MD, explains who needs to use sunscreen, the difference between sunscreen and sunblock, and other questions about protecting the skin from the sun.

Columbia medical students used to experience emergency medicine briefly during other rotations, but now the specialty has its own clerkship in the second year, earlier than most other schools.

An initiative led by a Columbia ophthalmologist seeks to improve the treatment of eye trauma, a serious but neglected condition second only to cataracts as the most common cause of visual impairment.

A fat ‘shield’ that protects natural killer cells from self-destruction also allows some cancer cells to evade destruction by the immune system, researchers at Columbia University have found.