Fig. 1From: T helper cells in synovial fluid of patients with rheumatoid arthritis primarily have a Th1 and a CXCR3+Th2 phenotype Summary of included T helper (Th) phenotypes, main cytokines produced [7, 8], receptors used for identification and related chemokine receptor ligands. TPh peripheral T helper cell, TFh T follicular helper cellBack to article page