The Man Is Working a a Laboratory and Carries Out Chemical Researches with Blood (Stock Footage)

The Man Is Working a a Laboratory and Carries Out Chemical Researches with Blood (Stock Footage)

4K. The man-researcher take a test-tube with blood in the hands. The researcher put a small stand closer to himself and open a cover in test-tube. Man put the cover on a small stand, shakes a blood and put the medical dispenser in a test-tube.

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