After shark attack, mom regains control with a bionic arm

Lucky to be alive, Tiffany Johnson is also the recipient of an innovative procedure that connects the brain to the movement of a prosthetic limb.

About Robert Zinn

Robert Zinn, M.D., Ph.D. is a medical doctor, physician, and web entrepreneur, who, for over 15 years was employed by academic and research institutions and focused his clinical practices on very specialized patient populations, such as those with rare genetic diseases or rare cancers. He shares his knowledge through his website,

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