van Rij, R. P., Visser, J. A., van Praag, R. M. E., Rientsma, R., Prins, J. M., Lange, J. M. A., & Schuitemaker, H. (2002). Both R5 and X4 Human Immunodeficiency Virus Type 1 Variants Persist during Prolonged Therapy with Five Antiretroviral Drugs. American Society for Microbiology.

van Rij, Ronald P., Janny A. Visser, Rieneke M. E. van Praag, Ronald Rientsma, Jan M. Prins, Joep M. A. Lange, e Hanneke Schuitemaker. Both R5 and X4 Human Immunodeficiency Virus Type 1 Variants Persist During Prolonged Therapy With Five Antiretroviral Drugs. American Society for Microbiology, 2002.

van Rij, Ronald P., et al. Both R5 and X4 Human Immunodeficiency Virus Type 1 Variants Persist During Prolonged Therapy With Five Antiretroviral Drugs. American Society for Microbiology, 2002.