SMN1 and primary biliary cholangitis: Among the enrolled 14 PBC patients, 12 cases were positive for ANA, 11 cases were positive for AMA, 1 case was positive for anti-soluble liver antigen/hepatopancreatic antigen antibody (SLA/LP), 1 case for anti-smooth muscle antibody (SMA) and 1 case for anti-hepatocyte cytoplasmic type 1 antibody (LC-1).