Effect of phosphorus ions on human bone marrow mesenchymal stem cells under three-dimensional culture 
Lei Qun, Chen Jiang, Huang Wen-xiu, Wu Dong, Lin Dong
Chinese Journal of Tissue Engineering Research . 2014, (47): 7591 -7596 .  DOI: 10.3969/j.issn.2095-4344.2014.47.009