Is It Okay To Crack Your Knuckles?
How many times did you crack your knuckles while watching this?
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Licensed via Warner Chappell Production Music Inc.
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Dr Donald Unger
Karen Quincy Loberg / vcstar.com
Real-time cine magnetic resonance imaging of the human metacarpalphalangeal joint undergoing traction. by Kawchuk et al. is licensed under a Creative Commons Attribution 4.0 International License.
Film Footage courtesy of Shutterstock, Inc.
Used with Permission
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