CD79A and nasopharyngeal carcinoma: In contrast to our findings, a study conducted in an NPC endemic area in China reported a significant association between anti‐EBV EBNA1 IgA and smoking34 These differing findings might be explained by the fact that the study from China and ours tested for antibodies targeting different EBV antigens, with our study using a test that detects antibodies against both early lytic (EA) and latent (EBNA‐1) phase proteins while the China study detected antibodies against a latent phase protein only (EBNA‐1).