Validation of Donor Oocytes Semi-automated Vitrification

"This instrument recently appeared on the market and demonstrated a high effectiveness in terms of processing time and reproducibility for embryo vitrification. To date, no study has analyzed the efficiency of this automated vitrification instrument on oocyte vitrification.~The oocytes will be stored in closed cassettes in liquid nitrogen"

The oocytes vitrification will be carried out by an authorized technician according to the manual protocol validated and used routinely.