1. Guillomot M. Cellular interactions during implantation in domestic ruminants. J Reprod Fertil. 1994;49(Suppl):39–51.
2. Bazer FW, Spencer TE, Johnson GA, Burghardt RC, Wu G. Comparative aspects of implantation. Reproduction. 2009;138(2):195–209.
3. Dziuk P. Effect of migration, distribution and spacing of pig embryos on pregnancy and fetal survival. J Reprod Fertil. 1984;33(Suppl):57–63.
4. Geisert RD, Zavy MT, Moffatt RJ, Blair RM, Yellin T. Embryonic steroids and the establishment of pregnancy in pigs. J Reprod Fertil. 1990;40(Suppl):293–305.
5. Modi DN, Bhartiya P. Physiology of embryo-endometrial cross talk. Biomed Res J. 2015;2:83–104.