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A. Survival analysis of four groups did not show significant difference in survival (p = 0.4409) if EBER expression is calculated for group 1 (10-20%), group 2 (30-40%), group 3 (50-60%) and group 4 (≥70%). B., We merged groups 2, 3 and 4 and compared with group 1, but did not show significant difference in overall survival (p = 0.1) (B).
