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ctDNA positively correlated with macrovascular invasion, tumor size and AFP level.
(A–D) Linear correlations between maximal ctDNA VAF or TERT C228T VAF and largest tumor diameter or AFP level. (E,F) Absence of correlations between CTC count and tumor size or AFP (Log10). Spearman's rank correlation test is used to analyze the correlation between two factors. VAF, variant allele frequency.
