8Sanyal AJ. AGA technical review on nonalcoholic fatty liver disease.Gastroenterology, 2002, 123: 1705-1725.
9Vong S, Bell BP. Chronic liver disease mortality in the United States, 1990-1998. Hepatology, 2004, 39: 476-483.
10Bellentani S, Saccoccio G, Masutti F, et al. Prevalence of and risk factors for hepatic steatosis in Northern Italy. Ann Intern Med,2000, 132: 112-117.