Infection with human papillomavirus (HPV) has been clearly established as the necessary cause of cervical cancer. This study is designed to evaluate the long-term immunogenicity and safety of the GSK Biologicals' 580299 HPV vaccine up to 10 years after administration of the first dose of HPV vaccine (Month 0) in primary study NCT 00196937. This protocol posting deals with objectives & outcome measures of the extension phase from Year 5 to Year 10. The objectives & outcome measures of the primary phase and extension phase up to year 4 are presented in a separate protocol posting (NCT 00196937).