LL Lu, YJ Liu, SG Yang, QJ Zhao, X Wang, W Gong, ZB Han, ZS Xu, YX Lu, D Liu, ZZ Chen, ZC Han. Isolation and characterization of human umbilical cord mesenchymal stem cells with hematopoiesis-supportive function and other potentials. Haematologica 2006;91(8):1017-1026; https://doi.org/10.3324/%x.