• Kyodo

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A panel under the Japan Society of Obstetrics and Gynecology has approved a plan to conduct clinical research in which eggs fertilized in vitro will be checked for possible abnormalities by examining their chromosomes.

The research is aimed at studying whether returning eggs found to have no abnormalities to the womb will help avoid miscarriages. But critics say the method poses ethical questions as it could lead to the exclusion of a broad range of chromosomal abnormalities, including Down syndrome.

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