A. Revel, Helman, A. , Koler, M. , Shushan, A. , Goldshmidt, O. , Zcharia, E. , Aingorn, H. , and Vlodavsky, I. . 2005. “Heparanase Improves Mouse Embryo Implantation”. Fertil Steril, 83, 3, Pp. 580–586.