Hypoxic preconditioning stimulates angiogenesis in ischemic penumbra after acute cerebral infarction
Sijie Li, Yanbo Zhang, Guo Shao, Mingfeng Yang, Jingzhong Niu, Guowei Lv, Xunming Ji
Neural Regeneration Research . 2013, (31): 2895 -2903 .  DOI: 10.3969/j.issn.1673-5374.2013.31.002