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BioNews Comment articles written by Norbert Gleicher:

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How good a solution is single embryo transfer (SET) for fertility patients?
26 January 2009 - by Norbert Gleicher
On the European side of the Atlantic single embryo transfer (SET) is increasingly becoming standard practice. As a consequence of legislation, as in Belgium, of professional dogma, as in most Scandinavian countries, or the product of the regulatory prowess of the Human Fertilisation and Embryology Authority (HFEA), as in the... [Read More]
Preimplantation genetic screening: unvalidated methods discard healthy embryos
11 December 2017 - by Norbert Gleicher
A seemingly brilliant hypothesis of preimplantation genetic screening arose in the 1990s when Dr Yuri Verlinsky proposed using polar body biopsies to detect chromosomal abnormalities in embryos prior to transfer in IVF... Healthy embryos are discarded by unvalidated PGS