Biological activity and restriction of human umbilical cord mesenchymal stem cells during long-term culture in vitro
Xu Chao, Liao Ji-dong, Liu Jing, Mao Wen-zhe, Li Yang-qiu
Chinese Journal of Tissue Engineering Research . 2011, (
10
): 1750 -1754 . DOI: 10.3969/j.issn.1673-8225.2011.10.009