6GITLIN N, LEWIS D C, HINKLEY L. The diagnosis andprevalence of subclinical hepatic encephalopathy in apparently healthy, non-shunted patients with cirrhosis[J], Hepatology,1986,3(1) : 75-82.
7GROENEWEG M,QUERO J C,BRUJN I D, et al. Subclinical hepatic encephalopathy impairs daily functioning [J].Hepatology, 1998,28(1) :45-49.
8ROMERO-GOMEZ M, BOZA F, GARCIA-VALDECASA M S, et al. Subclinical hepatic encephalopathy predicts the development of overt hepatic encephalopathy [J]. Am J Gastroenterol, 2001,96(9) : 2718-2723.
9DHIMAN R K,SARASWAT V A,VERMA M, et al. Figure connection:a universal test for assessment of mental state[J].Gastroenterol Hepatol, 1995,10(1) : 14-23.
10WATANABE A,SAKAI T, SATO S, et al. Clinical efficacy of lactulose in cirrhotic patients with and without subclinical hepatic encephalopathy[J]. Hepatology, 1997, 26 (6): 1410-1414.
