Mechanisms of positive effects of transplantation of human placental mesenchymal stem cells on recovery of rats after experimental ischemic stroke. - Yarygin KN; Kholodenko IV; Konieva AA; Burunova VV; Tairova RT; Gubsky LV; Cheglakov IB; Pirogov YA; Yarygin VN; Skvortsova VI (Bulletin of experimental biology and medicine, 2009)