Prevalence of Antiretroviral Drug Resistance Mutations in HIV Seropositive Patients from an Outpatient Clinic of a Large University Hospital from Sao Paulo, Brazil - Constantinov, Ericka Oliveira; Brigido, Luis Fernando de Macedo; Fonseca, Luiz Augusto M; Casseb, Jorge Simão do Rosário; Veiga, Ana Paula R; Magri, Marcello M. C; Monteiro, Mariana A; Rocha, Rosana C; Gascon, Maria R. P; Duarte, Alberto Jose da Silva (Aids research and human retroviruses, 2020)