Pencegahan Kanker Sofia Peterson AMANDA LUMSDEN, AUSTRALIA, CANCER PREVENTION, CLINICAL TRIALS, CUBA, DISEASE PREVENTION, HPV VACCINE, LUMSDEN, MEDICINE, MRFF, NORTH AMERICA, OCEANIA, TREATMENT, UNISA, UNIVERSITY OF SOUTH, UNIVERSITY OF SOUTH AUSTRALIA Pil Kontrasepsi dan Pengurangan Risiko Kanker Ovarium