SLA and primary biliary cholangitis: In primary biliary cholangitis (PBC), anti-mitochondrial antibodies (AMA) constitute the conventional autoantibody for the diagnosis, while anti-liver kidney microsomal type-1 antibodies (anti-LKM1), and anti-soluble liver antigen antibodies (anti-SLA), are part of the conventional repertoire for the diagnosis of AIH and relevant for subclassification1,2.