Tail vein transplantation of human umbilical cord mesenchymal stem cells for treatment of cerebral ischemia-reperfusion injury in rats  
Zhang Pei-pei1, Liu Hui-chun1, Yan Xiao-ling2, Wang Shi-min2, Kong Fan-ming2, Zhang Wen-zhi2
Chinese Journal of Tissue Engineering Research . 2012, (14): 2581 -2584 .  DOI: 10.3969/j.issn.1673-8225.2012.14.023