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Long-term exposure to air pollution, especially ozone, is associated with the development of emphysema, researchers at Columbia and other universities have found.

At Columbia's annual White Coat Ceremony, 140 members of the Class of 2023 began their journey into the medical field.

As a Mexican-American growing up in Texas, Cristian J. Peña developed an identity shaped by his culture. He aspires to make health care more accessible to people from diverse backgrounds.