Cryopreservation could be performed as oocyte cryopreservation prior to fertilisation, or as embryo cryopreservation immediately after fertilisation. When stimulating ovulation soon after suppressing endogenous secretion, it is necessary to supply exogenous gonadotropines. For the duration of 2020, the specific situation varied widely with diverse amounts of limits used in different https://www.ivf.com.mx/