McGill Cryoleaf   Plastic blade   Vitrified Survived (%) Vitrified Survived (%) Oocytes 15 12 (80) a 26 16 (61.53) a Embryos 13 8 (61.54) b 7 3 (42.86) b Total 28 21(75) c 33 19(57.6) c Values with the same superscript letters are significantly different (p<0.05)

Table 1: Survival rate of abnormal human oocytes and embryos vitrified with the plastic blade or McGill Cryoleaf.