Figure 1. Sequence of the process of IVM of oocytes (A) Immature COC. (B) COC at 36 hours of culture with rFSH + hCG + patient’s serum. (C) Denuded oocyte showing the second polar body (metaphase II). (D) Oocyte fertilization and evaluation at 16 hours. (E) Embryo after 42 hours of development and freezed by vitrification. (F) Thawed embryo, cultivated for 24 hours and transferred.