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Human immunodeficiency virus type 1- and cytomegalovirus-specific cytotoxic T lymphocytes can persist at high frequency for prolonged periods in the absence of circulating peripheral CD4(+) T cells.
Spiegel HM, Ogg GS, DeFalcon E, Sheehy ME, Monard S, Haslett PA, Gillespie G, Donahoe SM, Pollack H, Borkowsky W, McMichael AJ, Nixon DF. Spiegel HM, et al. J Virol. 2000 Jan;74(2):1018-22. doi: 10.1128/jvi.74.2.1018-1022.2000. J Virol. 2000. PMID: 10623767 Free PMC article.