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Circulating PD-1+OX40- T cell concentration according to normal vitamin D (NVD) levels and vitamin D deficiency (VDD) in basal, cycle 3 and end of induction (EOI). (A): CD4+; (B): CD8+; (C): total T cells. **, statistically significant differences compared with basal (p ≤ 0.01). #, statistically significant differences compared with NVD (p ≤ 0.05).
