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Percentage of LDNs in PBMCs (A, C and E) and ratio of LDNs/HDNs (B, D and F) from patients (n = 36) with different EGFR status. Total patients (A, B), treatment naïve patients (C, D) and treated patients (E, F) with EGFR mutation data. Statistical significance was determined by a two-tailed Mann-Whitney test. *P < 0.05, **P < 0.01.
