A 28-year-old woman presents for her annual well-woman exam. She is asymptomatic, with no complaints of abnormal vaginal bleeding, discharge, or pelvic pain. She has no significant medical history and is sexually active with one partner. She has received all three doses of the HPV vaccine and is up to date on her vaccinations. She asks about the primary screening method for cervical cancer to maintain her reproductive health. What is the primary screening method for cervical cancer?