Cryopreservation is usually carried out as oocyte cryopreservation in advance of fertilisation, or as embryo cryopreservation just after fertilisation. After a physician deems the uterine lining favorable for embryo transfer, the frozen embryos thaw. Then, a physician transfers them in to the uterus employing a catheter. The technique is usually https://sociallytraffic.com/story3330739/ivf-for-dummies