Article
New Perspectives on Embryo Biopsy: Not How, But When and Why?
21 Jun 2012
Abstract excerpt
During the past 2 decades, biopsy for preimplantation genetic diagnosis at three stages, that is, before conception (the first polar body), after fertilization (the second polar body), and early cleavage (D3 blastomeres) or blastocyst stage (D5/D6 trophectoderm biopsy), have been optimized and performed clinically in hundreds of in vitro fertilization centers around the world. Although opening the zona pellucida...
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