1Improvement of methods to isolate and culture rat mesenchymal stem cellsZHU Xulong, YAN Tan, WANG Yongheng, CHENG Chong, YAO Weijie, Lü Yi, LI Jianhui1-62Effects of Sec3 on mucin secretion induced by neutrophil elastase in airway epithelium cellsHE Fang, ZHOU Xiangdong7-103Effect of strict disinfection of environment strategy on multi-drug resistant bacteria infection control in intensive care unitMA Mingyuan, XU Jie, HUANG Guomin, YU Na14-164Evaluation the correlation between the risk of malignancy index and Doppler ultrasound examination for discrimination between benign and malignant adnexal massesLUO Chunyue17-225The distribution and characteristics of HBV genotypes between Hui and Han population in XinJiangYANG Liu, ZHANG Hongmei, XU Jiaoyang, WANG Rui, LIU Hongchun, WANG Zheng, YU Wuzhong23-276Typs and recent progress of artificial tracheal prosthesis in application research of tracheal reconstructionLI Gang, ZHANG Jing, CUI Xiaohai, ZHAO Yang, LU Lu, LI Xiaojun40-447Experiences of Disaster Medicine Education in Military Medical UniversityDU Yan, SU Tong, CAO Guangwen49-518Practice of Pre-Service Training for New Employees of Hainan General HospitalWang Baiyi, Zhong Wenfei62-639A clinical analysis of 4 cases of heterotopie pregnancy(HP) after in vitro fertilization and embryo transfer(IVF-ET)DING Caifeng, ZENG Fei64,封3