Cryolab has published a clinical comparison of vitrification vs slow freezing for IVF laboratories.

Oocyte survival 90%+ with vitrification vs 50–80% with slow freezing. Blastocyst survival 95%+ vs 70–85%. ESHRE 2020 guidelines recommend vitrification for oocytes and embryos. Slow freezing remains standard for sperm banking.

Full guide: https://cryolab.co.uk/vitrification-vs-slow-freezing-ivf-cryopreservation-guide/

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