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www.fdanews.com/articles/108394-test-to-pick-out-viable-embryos

Test to Pick Out Viable Embryos

July 9, 2008
A new test checks the chemical “fingerprint” of the fluid which surrounds IVF embryos to identify those most likely to implant successfully. The US developers told a European fertility conference it may improve IVF pregnancy rates by up to 15%.
BBC News