Embryos not Employed in the current cycle may be cryopreserved. Cryopreservation is often obtained with vitrification, a quick freezing system. Vitrification is assumed to prevent cryoinjury by reducing the event of intracellular crystals.[35] All embryos can also be frozen in people at risk for ovarian hyperstimulation syndrome (talked over further https://www.ivf.com.mx/