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Fig. 4 | BMC Medical Genomics

Fig. 4

From: An adaptive detection method for fetal chromosomal aneuploidy using cell-free DNA from 447 Korean women

Fig. 4

Coefficient of variation (CV) for chromosome 21 with and without adaptive sample selection using the representative sample with a GC = 0.437. The baseline bar represents the coefficient of variation used to measure the genomic representation of chromosome 21 among reference samples (n = 396) without adaptive sample selection. Additional bars represent the CV with adaptive sample selection. The bar marked A represents the coefficient of variation used to measure the genomic representation of chromosome 21 among selected reference samples (n = 31). The B (n = 90), C (n = 138), D (n = 189), E (n = 227), and F (n = 292) also represent the CV with increased numbers of reference samples

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