VANDENBERG SPACE FORCE BASE, Calif. -- On Sept. 25, the 30th Medical Group hosted their semi-annual Pap-A-Thon at Vandenberg Space Force Base. The semi-annual Pap-A-Thon offers convenient walk-in access to many of these crucial screenings which includes regular breast exams, cervical cancer screenings via Pap smears, referrals for mammograms, colorectal/colonoscopy screenings, and lung cancer screenings for at-risk populations.