CD4 T Cell-Derived IL-21 Is Critical for Sustaining Plasmodium Infection-Induced Germinal Center Responses and Promoting the Selection of Memory B Cells with Recall Potential. - Johnson JT; Surette FA; Ausdal GR; Shah M; Minns AM; Lindner SE; Zander RA; Butler NS (Journal of immunology (Baltimore, Md. : 1950), 2024)