Effects of cytotoxic T lymphocytes (CTL) directed against a single simian immunodeficiency virus (SIV) Gag CTL epitope on the course of SIVmac239 infection. by Allen, T, Jing, P, Calore, B, Horton, H, O'Connor, D, Hanke, T, Piekarczyk, M, Ruddersdorf, R, Mothé, B, Emerson, C, Wilson, N, Lifson, J, Belyakov, I, Berzofsky, J, Wang, C, Allison, D, Montefiori, D, Desrosiers, R, Wolinsky, S, Kunstman, K, Altman, J, Sette, A, Mcmichael, A, Watkins, D