HNF4A and primary biliary cholangitis: Jiang et al. (82) reported that lncRNA H19 is markedly enriched in hepatocyte nuclear factor 4α(HNF4α) (+) periportal hepatocytes within liver samples from female PBC patients, as revealed by a novel technique combining in situ hybridization (ISH) with immunofluorescence (IF) co-labeling.