Thielen, A., Lengauer, T., Swenson, L. C., Dong, W. W., McGovern, R. A., Lewis, M., James, I., Heera, J., Valdez, H., & Harrigan, P. R. (2011). Mutations in gp41 are correlated with coreceptor tropism but do not improve prediction methods substantially. Antiviral Therapy, 16(3), 319-328. doi:10.3851/IMP1769.