Case Western Reserve University

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In this undated photo made available on Tuesday, March 28, 2017 by Case Western Reserve University, Bill Kochevar feeds himself, in Cleveland, Ohio. A paralyzed man was able to feed himself for the first time in eight years, after doctors implanted electronic sensors into his brain and arm that restored the broken connection between them. Kochevar, 56, was paralyzed from the shoulders down after a cycling accident in Cleveland nearly a decade ago. (Russell Lee/ Case Western Reserve University via AP)