Directed differentiation of human embryonic stem cells into thymic epithelial progenitor-like cells reconstitutes the thymic microenvironment in vivo - Xiaoning Sun; Jun Xu; Hongxia Lu; Wang Liu; Zhenchuan Miao; Xin Sui; Haisong Liu; Li Su; Weichao Du; Qihua He; Fangyuan Chen; Yan Shi; et al. (Cell Stem Cell, 2013)