In the presence of high-quality embryos, even at the stage of blastocyst, the success is around 50% in the best clinics, in spite of chro-
mosomal abnormalities of the embryo, in a number od cases a disorder of the process of hatching(hatching) of embryos is mentioned
as the reason for the failure.
Cryopreservation is a set of revolu-
tionary techologies in the field of
cryobiology by which cells and
tissues can be successfully frozen at
extremely low temperatures that
allow virtually stopping of biological...
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