Figure 4. Funnel plots of Mendelian randomization (MR) analysis on PSC. (A) MR funnel plot for GSTO1 and PSC; (B) MR funnel plot for FCGR3A and PSC; (C) MR funnel plot for RNASET2 and PSC; (D) MR funnel plot for FCGR2A and PSC; (E) MR funnel plot for FCGR2B and PSC; (F) MR funnel plot for FCGR3B and PSC; (G) MR funnel plot for RNASE6 and PSC; (H) MR funnel plot for CTSB and PSC. Abbreviations: MR: Mendelian randomization; PSC: primary sclerosing cholangitis.