*Fisher exact chi-square test **Presence of DNA of any of the following viruses: BKV, KIV, JCV, MCV, WUV, TSV, HPyV6, HPyV7, HPyV9, SV40, CMV, EBV1, EBV2, HSV1, HSV2 and 46 types of HPV (21 alpha-HPV
Additional file 2: Supplemental Figure 2. A map of the SNPs associated with each serum tumor marker on different chromosomes. (A) AFP; (B) CA50; (C) CA125; (D) CA153; (E) CA19-9; (F) CEA; (G) f-PSA; (