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https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/440599STS-131 NASA & Walter Reed Hospital Tissue Growth Experiments - Flight Preps. Original from NASA . Digitally enhanced by…Save

STS-131 NASA & Walter Reed Hospital Tissue Growth Experiments - Flight Preps. Original from NASA . Digitally enhanced by rawpixel.

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STS-131 NASA & Walter Reed Hospital Tissue Growth Experiments - Flight Preps. Original from NASA . Digitally enhanced by rawpixel.

More