Embryos not Utilized in The existing cycle is usually cryopreserved. Cryopreservation is often reached with vitrification, a swift freezing method. Vitrification is believed to stop cryoinjury by reducing the development of intracellular crystals.[35] All embryos may also be frozen in people at risk for ovarian hyperstimulation syndrome (mentioned further in https://modernbookmarks.com/story18305792/the-best-side-of-ivf