Microbiome analysis according to the recurrence of lung cancer. (A) Comparison of the alpha diversity indexes (Chao1, Shannon, and phylogenetic diversity), (B) Principal coordinates analyses of the unweighted UniFrac distance, (C) Box-and-whisker plot of unweighted intragroup UniFrac distance, (D) LEfSe analysis of the bacterial communities, and (E) The cumulative rate of recurrence according to the presence of the Stenotrophomonas genus.