Pacheco, Y. M., Jarrín, I., Del Amo, J., Moreno, S., Iribarren, J. A., Viciana, P., Parra, J., Gomez-Sirvent, J. L., Gutierrez, F., Blanco, J. R., Vidal, F., Leal, M., Castilla, J., Pérez-Hoyos, S., & Arenas, M. A. R. (2009). Risk factors, CD4 long-term evolution and mortality of HIV-infected patients who persistently maintain low CD4 counts, despite virological response to HAART. Current HIV Research, 7(6), 612-619. https://doi.org/10.2174/157016209789973673