Additional file 1: Supplementary figure 1. Confocal microscope imaging of IF single stainings in EC specimens. Supplementary figure 2. cfDNA levels increase in EC samples and are inversely related to cfmtDNA. Supplementary figure 3. H3k9me2 levels are inversely related to cfDNA levels in EC sera. Supplementary figure 4. DNA fragmentation pattern analysis of cfDNAin HS and EC serum samples.