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Columbia psychologist Erin K. Engle discusses the signs that indicate the time is right to stop therapy and questions patients should ask themselves before moving on.

Columbia biomedical engineers are collaborating with orthopedic surgeons to build a living replacement knee to be tested in clinical trials within five years.

An analysis of more than 40,000 primary sensory neurons in the skin has found multiple different types, each sensing a more complex range of stimuli than previously assumed.