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> Frozen embryos are extremely viable

Well, eggs aren't embryos... They're not fertilized and they're not dividing so I'm not sure how you propose checking viability before freezing... The stats cited in the article are that only 2000 frozen eggs have ever been successfully used world-wide.



You're right, you can't, which is why a large number are harvested at a time to ensure a proper viability ratio.




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