Figure 5From: The distinctive profile of risk factors of nasopharyngeal carcinoma in comparison with other head and neck cancer types This histogram shows the significant higher mean values of EBV serum IgA but not IgG antibodies, measured in ELISA OD, in NPC patients with age below the median cutoff value (54.4 years) than in NPC patients with age above the median cutoff value (54.4 years).Back to article page