Figure 2. Funnel plots of Mendelian randomization (MR) analysis on PBC. (A) MR funnel plot for HSPB1 and PBC; (B) MR funnel plot for LEFTY2 with primer 15503_15 and PBC; (C) MR funnel plot for LEFTY2 with primer 15503_20 and PBC; (D) MR funnel plot for FGF2 and PBC; (E) MR funnel plot for EPHA1 and PBC; (F) MR funnel plot for ERAP1 and PBC; (G) MR funnel plot for TNFAIP6 and PBC; (H) MR funnel plot for ITIH5 and PBC. Abbreviations: MR: Mendelian randomization; PBC: primary biliary cholangitis.