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Objectives
To investigate the general occurrence and clinical significance of absence of heterozygosity (AOH), detected by single‐nucleotide polymorphism (SNP) array on prenatal diagnosis.
Methods
We recruited pregnancies undergoing invasive prenatal diagnosis at our fetal medicine center over a 6‐year period. All fetuses underwent SNP array using the Affymetrix CytoScan HD array platform. AOH was...
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