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Figure S1.Coexpression of Tim-3 and CD38 in CD8+ T cells. Flow cytometry plots of CD38 versus Tim-3 expression levels from three subjects (from left to right): an HIV-1–infected viral controller, an HIV-1–infected chronic progressor with a moderate viral load, and an HIV-1–infected chronic progressor with advanced disease and a high viral load. Numbers represent percentage of Tim-3/CD38 double-positive cells.