Patient code, patient ID, and the antibody concentration (µg/mL) of the anti-CS or anti-CUB autoantibodies after purification using CS- or CUB-affinity chromatography, respectively. Antibody concentrations were measured via spectrophotometry at optical density 280 nm (OD_{280 nm}). Green or purple boxes indicate that autoantibodies were eluted from the CS- or CUB-affinity column, respectively, and that they consisted of anti-CS or anti-CUB autoantibodies because they showed specific binding to CS or CUB, respectively, in ELISA (Figure 1A-B), with the exception of the anti-CUB autoantibody fraction of patient F (*), which also recognized T2-T8 (Figure 1B). This anti-CUB autoantibody fraction was not studied further. Gray boxes indicate that no autoantibody was eluted from the CS- or CUB-affinity column (Figure 1A-B).