Upper endoscopy, Colonoscopy, Hemochromatosis, Esophageal varices, Hepatitis C, Portal hypertension, Hepatocellular car...cinoma, Hereditary hemorrhagic telangiectasia, Cholangiocarcinoma, Primary sclerosing cholangitis, Wilson's disease, Hepatopulmonary syndrome, Alcoholic hepatitis, Autoimmune hepatitis, Hepatic encephalopathy, Liver problems, Hepatitis B, Nonalcoholic fatty liver disease