Fig. 3From: Altered B cell compartment associated with Tfh cells in children with Henoch-Schonlein PurpuraAnalysis of the frequency of Tfh cells and PD-1 expression. Representative graph of the percentage of (A) The percentage of T cells, (B) CD4+CXCR5+ Tfh cells and (C) PD-1 expression on Tfh cells in children with HSP and HCs. CD: cluster of differentiation, HC: Healthy controls, HSP, Henoch-Schonlein purpura, Tfh, T follicular helperBack to article page