Injectable nano-hydroxyapatite/chitosan composite scaffolds combined with bone marrow mesenchymal stem cells and bone morphogenetic protein 2 for bone defect repair in vitro  
Liu Guang-tao, Gao Feng, Xu Jun, Zheng Wei-zhuo, Lin Xiao-zong, Zhou Chang-lin, Guo Ya-shan, Tian Jun
Chinese Journal of Tissue Engineering Research . 2018, (2): 228 -233 .  DOI: 10.3969/j.issn.2095-4344.0011