6Castera L, Vergniol J, Foucher J, et al. Prospective comparison of transient elastography, Fibrotest, APR1, and liver biopsy for the assessment of fibrosis in chronic hepatitis C[J]. Gastroenterology, 2005, 128 ( 2 ) : 343-350.
7Colletta C, Smirne C, Fabris C, et al. Value of two non- invasive methods to detect progression of fibrosis among HCV carriers with normal aminotransferases[J].Hepatology, 2005, 42(4) :838-843.
8Zhang Y G, Wang B E, Wang T L, et al. Assessment of hepatic fibrosis by transient elastography in patients with chronic hepatitis B [J].Pathol Int, 2010, 60 (4) : 284- 290.
9Sirli R, Sporea I, Tudora A, et al. Transient elastographic evaluation of subjects without known hepatic pathology: does age change the liver stiffness? [J]. J Gastrointestin Liver Dis, 2009, 18( 1 ) :57-60.
10Wright TL.Introduction to chronic hepatitis B infection.Am J Gastroenterol,2006,101 (suppl 1):1 -6.