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Expansion ability of different subsets to the global (a) Gag- and (b) Nef-specific CD8+ T responses, according to the absence/presence of protective class I human leucocyte antigen (HLA)-B* alleles in typical progressors (TP), long-term non-progressors (LTNPs) and subjects on HAART for at least 1 year and maintaining undetectable viral load (HP).
