. (A) Electropherogram of cfDNA samples analyzed with high sensitivity D1000 tape of TapeStation. The distinct peak between around 170 bp represents the mono-nucleosomal fragment. The broad peak larger than 800 bp represents HMW DNA. The difference in cfDNA quantification correlated with the amount of HMW DNA (ng/μL). Abbreviations: cfDNA, cell-free DNA; HMW, high molecular weight.