The Healthiest

Preimplantation genetic screening aims to ensure that healthy embryos are implanted during IVF, but critics say the process may decrease odds of becoming pregnant, the New York Times reports.

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Hurting how, Norbert? Its not

Hurting how, Norbert? Its not pregnancy rates people are after, its healthy live births, and thats one aim of PGS - to avoid pregnancies with chromosomal abnormalities that may not reach full term. Moving to single embryo transfers also reduces the maternal health risks involved with multi-fetus pregnancies.
Just because an older form of PGS (care to specify?) was found to be largely ineffective doesn't mean we should tar new approaches with the same brush. If in doubt, check on the randomized clinical trial data for an objective viewpoint rather than out of context soundbites.