Fig. 3From: Enhanced IL-6/phosphorylated STAT3 signaling is related to the imbalance of circulating T follicular helper/T follicular regulatory cells in patients with rheumatoid arthritisSerum IL-6 levels in patients with active rheumatoid arthritis (RA) (circles), patients with inactive RA (squares), and the healthy controls (HCs) (triangles). IL-6 levels (pg/ml) are shown in a log scale. Horizontal bars indicate the medianBack to article page