Fig. 5From: Circulating tumor cells with karyotyping as a novel biomarker for diagnosis and treatment of nasopharyngeal carcinomaThe relationship between CTCs number and plasma EBV DNA level of NPC patients. a. Positive correlation between CTCs number and plasma EBV DNA level was found in the 67 tested samples including 50 patients prior to treatment and 17 patients post to treatment (R = 0.326, P = 0.007). b. Positive correlation between CTCs number and plasma EBV DNA level in 50 pre-treatment patients was found (R = 0.345, P = 0.014). R, Pearson linear correlation coefficient; P, P valueBack to article page