2Biecker E, Heller J, Appenrodt B, et al. Gastrointestinal bleeding in portal hypertension in liver cirrhosis [J]. Z Gastroenterol, 2005,43(1) : 35-46.
3Boursier J, de Ledinghen V, Zarski JP, et al. Comparison of eight diagnostic algorithms for liver fibrosis inhepatitis C:New algorithms are more precise and entirely noninva- sive[J]. Hepatology, 2012,55 : 58-67.
4Saleh HA, Abu-Rashed. Liver biopsy remains the gold stand and for evaluation of hepatitis and fibrosis [J]. J Gastrointestin Liver Dis, 2007,16 (4) : 425-626.