Adolescents¿ knowledge of HPV and sexually transmitted infections at public high schools in São Paulo: A cross-sectional study Jose Maria Soares Junior; Hervillin Maria Creusa de Oliveira; Camilla Maganhin Luquetti; Lea Tami Suzuki Zuchelo; Eduardo Carvalho de Arruda Veiga; Juliana Zangirolami Raimundo; Francisco Winter dos Santos Figueiredo; Mayara Souza Alves; Isabel Cristina Esposito Sorpreso; Edmund Chada Baracat;