PDCD1 and lymphoma: Using the Mann-Whitney U test, we identified 7 AAbs (PD1, PD-L1, PHACTR1, ARFGAP1, EIF3H, JUN, UBALD1) that were significantly elevated in the lymphoma group, whereas 7 AAbs (EIF4E2, CCDC130, LPCAT4, CPLX2, SIX2, TCEA3, VMAC, MRPL44) were decreased in lymphoma patients than the other two groups (p≤0.05, Figure 2C, Figure S4).