链接:http://www.ncbi.nlm.nih.gov/pubmed/16635794 % |, b6 l' A% B% A标题:Direct comparison of umbilical cord blood versus bone marrow-derived endothelial precursor cells in mediating neovascularization in response to vascular ischemia 7 g- B) j. G* ]& [谢谢! $ t+ M6 x' e1 ^( _( \$ [