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A regulatory effect of IL-21 on T follicular helper-like cell and B cell in rheumatoid arthritis

Rui Liu, Qian Wu, Dinglei Su, Nan Che, Haifeng Chen, Linyu Geng, Jinyun Chen, Wanjun Chen, Xia Li*† and Lingyun Sun*†

Arthritis Research & Therapy 2012, 14:R255 doi:10.1186/ar4100

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