High rate of virologic suppression with darunavir/ritonavir plus optimized background therapy among highly antiretroviral-experienced HIV-infected patients: results of a prospective cohort study in São Paulo, Brazil - Vidal, José Ernesto; Song, Alice Tung Wan; Matos, Maria Laura; Bartmann, Daniel; Anjos, Guilherme dos; Miranda, Érique José Peixoto de; Freitas, Ângela Carvalho; Dalben, Mirian de Freitas; Santana, Claudinei; Segurado, Aluísio Cotrim; Barreto, Cláudia Cortes; Hernández, Adrián Vladimir (Brazilian Journal Infectious Diseases, 2013)