Chromatin and single-cell RNA-seq profiling reveal dynamic signaling and metabolic transitions during human spermatogonial stem cell development by Guo, J, Grow, E, Yi, C, Mlcochova, H, Maher, G, Lindskog, C, Murphy, P, Wike, C, Carrell, D, Goriely, A, Hotaling, J, Cairns, B