Homing Mechanisms in Ischemic Injury and Therapeutic Effects of Placenta-Derived Multipotent Cells (PDMCs) in Animal Models of Ischemic Heart Disease (IHD) and Establishment of PDMC Cell Core (III) = 胎盤幹細胞在動物疾病模式生物作用機轉的研究---子計畫四:探討胎盤幹細胞在組織缺氧時的細胞趨向機轉及缺氧性心臟病動物模式的治療效果以及建立胎盤幹細胞供應及品管平台 (III)