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Table 2 Proportions of CTCs in each NPC clinical stage and their comparison

From: Circulating tumor cells: a valuable marker of poor prognosis for advanced nasopharyngeal carcinoma

StageIIIIIIIV
CTCs count
 = 02954169
 = 1001042
 = 200313
 = 300012
 > =400352
Number of cases
 Total number of cases2970288
P-value of Chi-square Test:0.011