RAJA S, BALASUBRAMANIAN S, DHINAKARRAJ G, VEERAPANDIAN C. Expression pattern of OCT 4, NANOG and HSP 90 β gene in oocytes and various stages of in vitro produced sheep embryos. Indian J of Anim Sci. 2015;85(11):1187–1189. doi:10.56093/ijans.v85i11.53143