Influence of Cryopreservation by Vitrification on Morphology and Localization of Meiotic Division Spindle of Human Oocytes - N. O. Buderatska; Yu. V. Hontar; S. V. Lavrynenko; Ye. Ilin; O. I. Parnytska; K. I. Ilina; E. V. Kapustin (Problems of cryobiology and cryomedicine, 2017)