Raquel Hoskins, 5th Medical Support Squadron medical laboratory technician, places a blood sample in a centrifuge at Minot Air Force Base, , Dec. 13, 2016. The centrifuge seperates red blood cells from plasma and serum for use in chemical analysis testing.

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Photo credit: © Conner Flecks / Alamy / Afripics
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Keywords: archive, armed, blood, defence, forces, group, laboratory, medical, military, phlebotomy, reportage, servicemen, technician, usa