Heritability, pregnancy determination, and clinical follow-up in fetal copy number variation: an eight-year single-center retrospective study
Copy number variation (CNV) is defined as a > 1-kb-long DNA fragment copy number increase or decrease, with fetal CNV judgment and genetic counseling posing difficulties. We tested and retrospectively analyzed fetuses using chromosomal microarray analysis (CMA), 169 with abnormal CNV being completely verified and f...