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Serum antibodies to Epstein–Barr virus (EBV) antigens can be used to predict the risk of nasopharyngeal carcinoma (NPC). To investigate whether EBV seropositivity rates were higher among healthy family members from multiplex and sporadic families with NPC (i.e., families with multiple or single cases) compared to the general population, a study was conducted on 2,665 unaffected individuals from 140...
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