Factors associated with HPV and other self-reported STI coinfections among sexually active Brazilian young adults: cross-sectional nationwide study - Kops, Natalia Luiza; Bessel, Marina; Horvath, Jaqueline Driemeyer Correia; Domingues, Carla; Souza, Flavia Moreno Alves de; Benzaken, Adele Schwartz; Pereira, Gerson Fernando Mendes; Maranhao, Ana Goretti Kalume; Villa, Luisa Lina; Mello, Barbara (Bmj open, 2019)