PBC, Primary Biliary Cirrhosis; AIH, Autoimmune Hepatitis; BA, Biliary Atresia; LAM, Lamivudine; TDF, Tenofovir; Normal values: ALT, 0–40U/L; HBsAb, 0–1mIU/mL. The gene discussed is GPT; the disease is primary biliary cholangitis.