Air Force Staff Sgt. Cecilia de la Rosa looks at mammogram X-rays to make sure the images are of diagnostic quality at the Joint Base Elmendorf-Richardson, Alaska, hospital Oct. 10, 2014. The American Cancer Society, a nationwide health organization, encourages women ages 20 and older to conduct breast self-examinations monthly. Breast examinations and screenings by a doctor are also recommended annually. De la Rosa is assigned to the 673rd Medical Surgical Squadron digital imaging flight as the noncommissioned officer-in-charge. (U.S. Air Force photo by Staff Sgt. Sheila deVera/Released)