The homing of bone marrow mesenchymal stem cells transplanted via the trachea into rats exposed to silica dust 
Huang Ming, Zhou Yong-mei, Li Bin, Wu Qi-feng, Zhu Yu-feng, Liang Wei-hui
Chinese Journal of Tissue Engineering Research . 2015, (23): 3711 -3715 .  DOI: 10.3969/j.issn.2095-4344.2015.23.018