Supplementary Figure S4 from Exosomal Thomsen–Friedenreich Glycoantigen: A New Liquid Biopsy Biomarker for Lung and Breast Cancer Diagnoses

Supplementary Figure S4. Repeatability and reproducibility of SPR assay in detecting exosomal TF-Ag-α. The levels of exosomal TF-Ag-α in serum samples from one normal control, one lung cancer patient and one breast cancer patient were measured by operator 1 (a) and operator 2 (b) on 3 different days, 3 replicates per day. The mean, standard deviation, and coefficient of variation (CV) were reported. (c) Pearson correlation of results from operator 1 and operator 2.