Fig. 5From: A dPCR-NIPT assay for detections of trisomies 21, 18 and 13 in a single-tube reaction-could it replace serum biochemical tests as a primary maternal plasma screening tool?For detecting aneuploidy pregnancies, Chromosomes 21, 18 and 13 (Chr21, Chr18 and Chr13) were used as both the targeting and reference chromosomes. After the dPCR-NIPT test, R21/18, R21/13 and R18/13, as well as the corresponding Z21/18, Z21/13 and Z18/13 for each sample were calculatedBack to article page