Source:http://linkedlifedata.com/resource/umls/id/C0019189
MSH: INFLAMMATION of the LIVER with ongoing hepatocellular injury for 6 months or more, characterized by NECROSIS of HEPATOCYTES and inflammatory cell (LEUKOCYTES) infiltration. Chronic hepatitis can be caused by viruses, medications, autoimmune diseases, and other unknown factors.,NCI: An active inflammatory process affecting the liver for more than six months. Causes include viral infections, autoimmune disorders, drugs, and metabolic disorders.