The purpose of this exploratory study is to estimate the prevalence of HPV vaccination and to assess predictors of HPV vaccination (and intent) among 9-26 year old females who have survived childhood cancer, while making comparisons to healthy acquaintance controls. In a cross-sectional design, those surviving childhood cancer (and acquaintance controls) will be asked to complete a questionnaire which queries sociodemographic, medical, and psychological variables which may relate to HPV vaccination or intent. Current vaccination rates will be examined and factors which associate with HPV vaccination (and intent) will be identified. Findings of the present study will inform recruitment strategies for future studies examining the immunogenicity, safety, tolerability, and behavioral outcomes of HPV vaccination among females surviving childhood cancer. More immediately, this work will further our understanding of familial decision-making regarding HPV vaccination among female survivors of childhood cancer and will determine whether vaccination recruitment models developed for healthy adolescents and young adults generalize to the pediatric cancer population.