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jan 1, 1974 - Tommy John Surgery Invented

Description:

In 1974, orthopedic surgeon Dr. Frank Jobe developed a surgical procedure that aimed to repair damage to the ulnar collateral ligament (UCL)

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Technological Advancements of Baseball

23 Feb 2019

17

11

17599

Date:

jan 1, 1974

Now

~ 51 years ago

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