%0 Letter %T Letter to the editor: "Definition of follicular helper T cell and cytokines expression in synovial fluid of rheumatoid arthritis". %A Chen G %A Chen H %A Wang Z %A Cai H %J Clin Rheumatol %V 43 %N 7 %D 2024 Jul 18 %M 38761245 %F 3.65 %R 10.1007/s10067-024-07006-2