A good embryo freezing programme is essential to increase the chances of pregnancy in couples undergoing assisted reproduction techniques. This is referred to as cumulative pregnancy rate, or the sum of the chances of pregnancy with one “fresh” cycle then a “frozen” one. In addition, we guarantee excellent results in embryo adoption cycles or when a treatment has to be canceled because of insufficient quality or endometrial bleeding and so the embryos should therefore be cryopreserved. […]