PGT-A Versus Blastocyst Morphology Selection

"Biopsy Blastocysts with morphological grades of ≥2BB will be biopsied on day 5 of in vitro embryo culture. Biopsies will be performed using a Hamilton Thorne Zilos laser (Hamilton Thorne, MA, USA), with 3-10 trophectoderm cells removed from the blastocysts.~Comprehensive chromosome screening All trophectoderm biopsies will be processed for analysis by Next-Generation Sequencing (NGS, Illumina, California, USA)."