Mechanisms of Positive Effects of Transplantation of Human Placental Mesenchymal Stem Cells on Recovery of Rats after Experimental Ischemic Stroke - K. N. Yarygin; I. V. Kholodenko; A. A. Konieva; V. V. Burunova; R. T. Tairova; L. V. Gubsky; I. B. Cheglakov; Yu. A. Pirogov; V. N. Yarygin; V. I. Skvortsova (Bulletin of Experimental Biology and Medicine, 2009)