Yoshioka K, Suzuki C, Iwamura S (January 2000). "Effects of activin A and follistatin on developmental kinetics of bovine embryos: cinematographic analysis in a chemically defined medium". Journal of Reproduction and Fertility. 118 (1): 119–125. doi:10.1530/jrf.0.1180119 (inactive 12 July 2025). PMID10793633.{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link)
Yoshioka K, Suzuki C, Iwamura S (January 2000). "Effects of activin A and follistatin on developmental kinetics of bovine embryos: cinematographic analysis in a chemically defined medium". Journal of Reproduction and Fertility. 118 (1): 119–125. doi:10.1530/jrf.0.1180119 (inactive 12 July 2025). PMID10793633.{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link)