Single-Cell RNA-Seq Reveals Cellular Hierarchies and Impaired Developmental Trajectories in Pediatric Ependymoma. - Gojo J; Englinger B; Jiang L; Hübner JM; Shaw ML; Hack OA; Madlener S; Kirchhofer D; Liu I; Pyrdol J; Hovestadt V; Mazzola E; et al. (Cancer cell, 2020)