HIV-1 genetic diversity and resistance to antiretroviral drugs among pregnant women in Ribeirão Preto (SP), Brazil: cross-sectional study - Pimenta, Ana Teresa Mancini; Correa, Isadora Alonso; Melli, Patrícia Pereira dos Santos; Abduch, Renata; Duarte, Geraldo; Couto-Fernandez, José Carlos; Quintana, Silvana Maria (São Paulo Medical Journal, 2018)