求助！

2005150122

标题：Fetal human hematopoietic stem cells can differentiate sequentially into neural stem cells and then astrocytes in vitro2 j7 u  s( ~9 W# k. M
链接：http://www.ncbi.nlm.nih.gov/pubmed/126624336 @% h5 K/ d  `5 R' B# {- h
谢谢！