Embryos not used in The present cycle can be cryopreserved. Cryopreservation is usually achieved with vitrification, a swift freezing system. Vitrification is thought to prevent cryoinjury by lowering the development of intracellular crystals.[35] All embryos may also be frozen in clients in danger for ovarian hyperstimulation syndrome (mentioned even more https://www.ivf.com.mx/