Risk factors associated with syphilis among patients at a sexual health center in Brazil: A retrospective study Cristhiane Campos Marques; Fabiana Nunes de Carvalho Mariz; Thaisa Campos Marques; Juliana Tessari Dias Rohr; Berenice Moreira; Paula Beatriz Santiago; Nathália Araujo Varela da Costa; Juliana Marques de Oliveira; Otávio Toledo Nóbrega; Carla Nunes de Araújo;

Risk factors for neurosyphilis in HIV patients: A retrospective cohort study Beatriz Arns; Tarsila Vieceli; Eduardo Gomes; Mariana Horn Scherer; Luisa Nakashima; Maria Luisa Santos; Ronara Blos Hepp; Fernanda Greinert; Maria Helena Rigatto;

Dried blood spot as alternative specimen for molecular epidemiology studies among HCV/HIV coinfected patients Geane Flores; Barbara Vieira Lago; Amanda R Caetano; Jessica Silva; Vanessa Marques; Carlos Eduardo Brandão-Mello; Marcia Amendola-Pires; Jose Pilotto; Lia Lewis-Ximenez; Livia Melo Villar;