Blood Drying Unit- Processing Blood in the Laboratory, Cambridge, England, UK, 1943 Workers at the blood drying unit at Cambridge University check test tubes of plasma as they are removed from the incubator. This test checks the sterility of the plasma upon arrival at the unit.

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Photo credit: © piemags/archive/military / Alamy / Afripics
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Keywords: 2, information, military, ministry, piemags, war, world, ww2