FGF13 and atrial fibrillation: A strong signal (odds ratio (OR) for AF development = 2.00, 95% confidence interval (CI) = 1.73–2.31, P = 1.6 × 10−20) was displayed by rs778479352, the lead variant located in an intron of FGF13, which is involved in the region of ENCODE11 accession no. EH38E2771113 (https://screen-v2.wenglab.org/search/?q=EH38E2771113&assembly=GRCh38), where high H3K4me3 and H3K27ac signals were observed, suggesting that rs778479352 might function as a candidate cis-regulatory element.