- Modeling the time course of CD4 T-lymphocyte counts according to the level of virologic rebound in HIV-1-infected patients on highly active antiretroviral therapy. Kousignian, I., Abgrall, S., Duval, X., Descamps, D., Matheron, S., Costagliola, D. J. Acquir. Immune Defic. Syndr. (2003)