Clinical study of ultrasound elastography and contrast-enhanced ultrasound in evaluating chronic hepatitis B liver fibrosis
GE Xiao-yan, LI Jun△, CAO Chun-li, CHENG Jing, XU Li-hong, LI Shu-gang
Tianjin Medical Journal . 2020, (11): 1065 -1069 .  DOI: 10.11958/20200567