Fig. 4

cfDNA concentration measured with microfluid electrophoresis (y-axis) and dPCR (x-axis) show a good correlation. Each dot represents the mean of the donors and blood tubes. Concentration dPCR was calculated by taking the mean of the four assays in the input volume used for dPCR. Concentrations from QuantaSoft software (copies/µl) were converted to pg/µl by multiplying by 3.2 pg. Sample means below LOD of TapeStation were excluded for calculating R2 (3/12)