Recombinant human bone morphogenetic protein-2 combined with basic fibroblast growth factor promotes vascular endothelial growth factor expression and osteogenic potential of bone marrow stromal cells in rabbits 
Chang Qi, Huang Chang-lin, Huang Tao
Chinese Journal of Tissue Engineering Research . 2011, (10): 1741 -1744 .  DOI: 10.3969/j.issn.1673-8225.2011.10.007