2[2]Wanless IR, Lentz JS. Fatty liver hepatitis (steatohepatitis) andobesity: an autopsy study with analysis of risk factors. Hepatology,1990,12(5): 110～2.
3[3]Bacon BR, Farachvash MJ, Janney CG, et al. Nonalcoholic steatohepatitis: an expanded clinical entity. Gastroenterology, 1994, 107(4): 1102～3.
4[4]Caldwell SH, Oelsner DH, Iezzoni JC, et al. Cryptogenic cirrhosis:clinical characterization and risk factors for underlying disease. Hep-atology, 1999,29(3) :664～5.
5[5]Sorbi D, Boynton J, Linder KD. The ratio of aspartate aminotransferase to alanine aminotransferase: potential value in differentiatingnonalcoholic steatohepatitis from alcoholic liver disease. Am J Gastroenterol, 1999,94(4): 1018.
6[6]James OF, Day CP. Nonalcoholic steatohepatitis (NASH): a disease of merging identity and importance. J Hepatol, 1998,29 (3):495～ 501.
