Reduced competence of immature and mature oocytes vitrified by Cryotop method: assessment by in vitro fertilization and parthenogenetic activation in a bovine model - Bulgarelli, Daiane L.; Vireque, Alessandra A.; Pitangui-Molina, Caroline P.; Sá, Marcos Felipe Silva de; Rosa e Silva, Ana Carolina Japur de Sá (Zygote, 2017)