Zhang W, Cheng M, Huang Y, Jiang W, Cong Q, Zheng Y, Xu C. A study in vitro on differentiation of bone marrow mesenchymal stem cells into endometrial epithelial cells in mice. European Journal of Obstetrics & Gynecology and Reproductive Biology. 2012 Feb;160(2):185–90. doi: 10.1016/j.ejogrb.2011.10.012.