Top proteins that were consistently associated with B-cell lymphoma across the EPIC, ARIC and UK Biobank cohorts included: CXCL13, sCD23, FCRL1, FCRL3, SEMA7A, CD72, CD48, LY9 and VCAM1 (Table 2, Supplementary Table 5). Here, FCRL1 is linked to B-cell non-Hodgkin lymphoma.