HumanInsight eHealth Communication Intervention to Promote Human Papillomavirus Vaccination Among Middle-School Girls: Development and Usability Study JMIR Form Res. 2024 Oct 28;8:e59087. doi: 10.2196/59087. ABSTRACT BACKGROUND: As the age of initiating sexual intercourse has gradually decreased among South Korean adolescents, earlier vaccination of adolescents for human papillomavirus (HPV) is necessary before their exposure to HPV. […]