Cryopreservation of<unk> s is the process of preserving an<unk>  at sub-zero temperatures, generally at an<unk> genesis stage corresponding to pre-implantation, that is, from fertilisation to the blastocyst stage.
Embryo cryopreservation
Fetal surgery
Egg donation
Embryo transfer
Semen cryopreservation
Ovarian tissue cryopreservation
Assisted reproductive technology
In vitro fertilisation