<p>(A) Number of chromosomal aberrations in aneuploid oocytes. In total, the polar bodies of 530 oocytes were tested by aCGH, and 359 were found to have a chromosomal aberration. Approximately 65% of aneuploid oocytes had two or more aneuploidies. (B) Distribution of chromosome errors in aneuploid oocytes. All chromosomes were found to be involved in aneuploidies. Aneuploidy of chromosome 4 was observed in only 10% of oocytes, while chromosome 19 aberrations were most frequently detected in up to 30% of oocytes.</p

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