Planned Parenthood Federation of America's (PPFA) Medical Affairs Division will conduct a prospective, cluster randomized trial to determine which factors influence the acquisition of the second and third human papillomavirus (HPV) vaccine doses among young women ages 19 to 26. This descriptive and interventional study will provide data to assess impact of a computerized tool upon HPV vaccine series completion. The interventional aspect of this study includes determination of patient assistance and provider support programs applicable to each woman's situation as well as the implementation of a computer software system for customized patient reminders.