Embryos not used in the current cycle may be cryopreserved. Cryopreservation is often accomplished with vitrification, a quick freezing procedure. Vitrification is assumed to prevent cryoinjury by decreasing the event of intracellular crystals.[35] All embryos can even be frozen in patients at risk for ovarian hyperstimulation syndrome (mentioned even more https://bookmarking1.com/story18490693/the-fact-about-in-vitro-fertilization-that-no-one-is-suggesting