In vivo visualization of embryonic stem cell survival,proliferation,and migration after cardiac delivery .Chondrogenic differentiation of mesenchymal stem cells is inhibited after magnetic labeling with ferumoxides .20 .徐琢,杨芳,张宇,等.超声微泡辅助干细胞移植治疗急性心肌梗死的实验研究 ......