High Frequency of CD4+CXCR5+ TFH Cells in Patients with Immune-Active Chronic Hepatitis B Feng, Junyan ; Lu, Lu ; Hua, Cong ; Qin, Ling ; Zhao, Pingwei ; Wang, Juan ; Wang, Ye ; Li, Wanyu ; Shi, Xiaodong ; Jiang, Yanfang Abstract Publication: PLoS ONE Pub Date: July 2011 DOI: 10.1371/journal.pone.0021698 Bibcode: 2011PLoSO...621698F