ELISA validation
The validation analysis of the differential plasma proteins was performed by ELISA, following the manuals of corresponding ELISA kits for GSTP1 (ELH-GSTP1-1, Raybiotech, Georgia, USA), GSTM2 (P81730, Cusabio, Wuhan, China), GSTO1 (Abbexa, abx151761, TX 77042, USA), PRDX6 (SEF756Hu, Cloudclone, Wuhan, China), Fibronectin (FN1) (ab108848, Abcam, Cambridge, USA), and SERPINB9 (SED390Hu, Cloudclone, Wuhan, China).