E. J. M. Bello, A. F. Correia, J. R. P. Marins, E. Merchan-Hamann, and L. I. B. Kanzaki, “Predictors of Virologic Failure in HIV/AIDS Patients Treated with Highly Active Antiretroviral Therapy in Brasília, Brazil During 2002–2008”, dti, vol. 5, no. 1, Nov. 2011.