Pencegahan Kanker Marcus Johnson CANCER CENTER, CANCER PREVENTION, CLINICAL TRIALS, COE, DISEASE PREVENTION, HPV VACCINE, JULIE DANG, MEDICINE, NONE, NORTH AMERICA, OFFICE OF COMMUNITY OUTREACH AND ENGAGEMENT, UC DAVIS COMPREHENSIVE CANCER, UNITED STATES Vaksin HPV Menurunkan Angka Kanker Serviks Secara Signifikan