Transplantation of artificial bone with autologous bone marrow combined with iliac periosteum for treatment of refractory bone nonunion in limbs Comparison to artificial bone with autologous bone marrow transplantation and simple iliac periosterum transplantation Chinese Journal of Tissue Engineering Research . 2010, (18): 3412 -3416 .  DOI: 10.3969/j.issn.1673-8225.2010.18.045