U.S. Air Force Staff Sgt. Raul Loyo, a laboratory technician with the 509th Medical Group, checks expiration dates on gram stain supplies at Whiteman Air Force Base, Mo., Feb. 20, 2013. (U.S. Air Force photo by Airman 1st Class Keenan Berry/Released)
Airman 1st Class Keenan Berry
Taken on 20 February 2013
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