M. Kafi, M. Ashrafi, M. Azari, B. Jandarroodi, B. Abouhamzeh, and A. Rakhshi Asl, “Niacin improves maturation and cryo-tolerance of bovine in vitro matured oocytes: An experimental study”, IJRM, vol. 17, no. 9, pp. 621–628, Sep. 2019.