Affiliation: | LIU Tong-jun1,LIU Shi2,HU Xiu-li2,SHENG Shi-hou1,HUANG Yu-bin2 and JING Xia-bin2 1.Department of Colorectal and Anal Surgery,China-Japan Union Hospital of Jilin University,Changchun 130033,P.R.China,2.State Key Laboratory of Polymer Physics and Chemistry,Changchun Institue of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022 |