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Tokyo Olympics schedule: Find out when gymnastics, swimming and other events are airing

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Virtual reality helps surgeons remove tumor from 2-year-old’s brain

02:21

Groundbreaking virtual reality technology helped a team of neurosurgeons at Lucile Packard Children’s Hospital at Stanford save a little boy’s life by removing a tumor from his brain. NBC’s Ayman Mohyeldin reports for TODAY.Nov. 15, 2019

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