In vitro fertilization with in vitro developed oocytes: the impact of heparin on the viability of frozen-thawed bull sperm. Int. J. Life. Sci. Biotech. Pharm. Sci [Internet]. 2019 Jan. 25 [cited 2026 Mar. 12];15(1):9-12. Available from: https://ijlbps.net/index.php/ijlbps/article/view/77