Spatiotemporal resolution of germinal center Tfh cell differentiation and divergence from central memory CD4+ T cell fate oleh Fangming Zhu, Ryan J. McMonigle, Andrew R. Schroeder, Xianyou Xia, David Figge, Braxton D. Greer, Edahí González-Avalos, Diego O. Sialer, Yin-Hu Wang, Kelly M. Chandler, Adam J. Getzler, Emily R. Brown, Changchun Xiao, Olaf Kutsch, Yohsuke Harada, Matthew E. Pipkin, Hui Hu