Surveillance and early diagnosis of small hepatocellular carcinoma with contrast-enhanced ultrasonography
YU Mei, MEI Qi, NI Juan, QIN Chen, XU Xiang-yong, FU Qing-yin, SHA Hong-fang, ZHAI Ling-yun, WANG Gang, ZHANG Jing
China Oncology . 2014, (3): 203 -207 .  DOI: 10.3969/j.issn.1007-3969.2014.03.008