6Fahey BJ, Nightingale KR, Nelson RC, et al. Acoustic radiation force impulse imaging of the abdomen: demonstration of feasibility and utility [J]. Ultrasound Med Biol, 2005, 31(9): 1185-1108
7Palmeri ML, Wang MH, Dahl J J, et al. Quantifying hepatic shear modulus in vivo using acoustic radiation force [J]. Ultrasound Med Biol. 2008, 34(4): 546-558
8Scheuer PJ. Classification of chronic viral hepatitis: a need for reassessment [J]. J Hepatol, 1991, 13(3): 372-374
9Fabris C, Smirne C, Toniutto P, et al. Usefulness of six non-proprietary indirect markers of liver fibrosis in patients with chronic hepatitis C [J]. Clin Chem Lab Med, 2008, 46(2): 253-259
10Roulot D,Buyck J,Gambier N,et al.Liver stiffness measurement:an appropriate screening method to detect liver fibrosis in the general population.Hepatology,2009,50:S89.