[Solutions provided by the freezing of embryos and questions posed by the freezing of human ovocytes]. / Les solutions apportées par la congélation d'embryons et les questions posées par la congélation d'ovocytes humains.

ABSTRACT

The major questions raised by frozen embryos are reviewed how to freeze? which embryos to freeze? how to replace the frozen embryos? What is he contribution of frozen embryos in a program of fertilization in-vitro. The cryopreservation of human ovocytes is also discussed.