HU Zhen-fu1,GAO Jian-hua2,LI Wei3,SONG Yan-bin4,LI Chao-long5 Department of Emergency1,Department of Plastic Surgery2,Department of Hepatobiliary Surgery5,Nanfang Hospital,Institute of Molecular Biology4,Southern Medical University,Guangzhou 510515,China;3Medical Engineering Division,Department of Engineering,Queen Mary,University of London,London,UK