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Valorie Guerra, Blood Source phlebotomist, inserts a needle during a blood donation from Airman Basic Raymond Rubio, 372th Training Squadron crew chief student, at the Beale Air Force Base, Calif. community activity center Oct. 19, 2012. Blood Source sends donations to more than 40 hospitals in 25 different countries. (U.S. Air Force photo by Senior Airman Allen Pollard)

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Valorie Guerra, Blood Source phlebotomist, preps for a blood donation from Airman Basic Raymond Rubio, 372th Training Squadron crew chief student, at the Beale Air Force Base, Calif. community activity center Oct. 19, 2012. Each donation of blood has the ability to save up to three lives. (U.S. Air Force photo by Senior Airman Allen Pollard)

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Valorie Guerra, Blood Source phlebotomist, takes a blood donation from Airman Basic Raymond Rubio, 372th Training Squadron crew chief student, at the Beale Air Force Base, Calif. community activity center Oct. 19, 2012. Blood donations provide life-saving treatments to accident victims, surgery patients, cancer patients and many others in need of a transfusion. (U.S. Air Force photo by Senior Airman Allen Pollard)