Differential Migration of Mesenchymal Stem Cells to Ischemic Regions after Middle Cerebral Artery Occlusion in Rats. oleh Soo Hyun Lee, Kyung Sil Jin, Oh Young Bang, Byoung Joon Kim, Soo Jin Park, Na Hee Lee, Keon Hee Yoo, Hong Hoe Koo, Ki Woong Sung