Gene Ontology terms enriched in nicotine addiction-related genes (NAGenes).

a. Only GO terms with hierarchical level≥4 and containing 5 or more nicotine addiction-related genes are shown.b. Number of genes in the 220 nicotine addiction-related genes and also in the categoryc. P-value were calculated by hypergeometric testd. PBH-value were adjusted by Benjamini & Hochberg (BH) methodGene Ontology terms enriched in nicotine addiction-related genes (NAGenes).