Fig. 3From: TNF-α inhibitor therapy can improve the immune imbalance of CD4+ T cells and negative regulatory cells but not CD8+ T cells in ankylosing spondylitisDifferences in the percentage of Th cells, Tfh cells, and Tc cells in the AS and HC groups. P value summary: *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001. Th cell, helper T cell; Tc cell, cytotoxic T lymphocyte; Tfh cell, follicular helper T cellBack to article page