1Application and thinking of evidence-based concept in social medicineQing-Qing JIANG, Fan CHEN, Chun-Dong ZHANG, Xue-Qun REN, Ling-Hui MENG, Zu-Xun LU, Shi-Yi CAOSpecialty Grand Challenge168-1732The interpretation of the Chinese expert consensus on exercise rehabilitation of elderly patients with stable coronary artery diseaseGuan WANG, Cun-Tai ZHANGSpecialty Grand Challenge174-1783The importance of bismuth-containing quadruple therapy in Helicobacter pylori eradication in an era of increasing antibiotic resistanceYi HU, Yuan ZHUANG, Nong-Hua LYUCommentary179-1834Development and preliminary validation of questionnaire for 2019 novel coronavirus releated nosocomial infectionYun-Yun WANG1, Tong DENG2, Bing-Hui LI1,2, Zhi-Min CHEN3, Bin MEI3, Xue-Qun REN2, Li-Ming TAN4,5, Zhen-Shun CHENG6, Yu-Feng YUAN7,8, Lin CAI7,9, Zhen-Yu PAN10, Ting WANG11,12, Lin-Lu MA1, Ming-Juan ZHAO1, Hao ZI1,2, Yong-Bo WANG1, Hao-Xian LIU1,12, Ying WANG13, Jing YAN8, Qiao HUANG1, Di HUANG1,12, Li-Sha LUO1, Cheng FANG1, Yi GUO1, Xu-Hui LI1, Yue CAO1, Hong WENG1, Jian YANG14,15, Bin PEI16, Xing HUANG1,11, Yong HAN12,17, Jia-Yu YANG12,17, Yin-Gao ZHANG17, Zhi-Qiang LI7,18, Hu WANG19, Shuai YUAN1, Yu WANG1, Xian-Tao ZENG1,12,20, Yang LI1, Yu-Liang GUI1, Zhi-Hua YANG1, Ying-Hui JIN1*, Xing-Huan WANG1,7,11,12*, Zhongnan Hospital of Wuhan University Novel Coronavirus Management and Research TeamCOVID-19 Subject184-2055The recommendation of early clinical intervention of aspirin and high dose vitamin C for 2019 novel coronavirus pneumoniaFu-Xiang ZHOU, Yun FU, Guo-Hui XIAOCOVID-19 Subject206-2086Evidence-based Chinese expert recommendations on drug prevention, diagnosis,treatment,and discharge management of COVID-19 a protocolYing-Hui JIN1,2, Hong-Jun LI3, Qing-Yuan ZHAN4,5, Zhi-Yong PENG6,7, Yu-Feng YUAN6, Lin CAI6, Xun-Tao YIN8, Ji-Rong YUE9,10, Qi-Wen YANG11, Jian-Guang JI12, Jian XIA13, Yi-Rong LI6,14, Fu-Xiang ZHOU15, Ya-Dong GAO16, Zhui YU17, Feng XU18, Xiao-Chun ZHANG19, Ming-Li TU20, Li-Ming TAN21, Xue-Qun REN22, Min YANG23, Fang CHEN24, Xiao-Ju ZHANG25, Mei ZENG26, Yu ZHU27, Xin-Can LIU28, Jian YANG29, Dong-Chi ZHAO30, Yu-Feng DING31, Ning HOU32, Fu-Bing WANG14, Hao CHEN33, Yong-Gang ZHANG9,34, Wei LI35, Wen CHEN36, Yue-Xian SHI37, Xiu-Zhi YANG38, Xue-Jun WANG39, Yan-Jun ZHONG40, Tong DENG22, Jin-Ping GAO41, Shao-Fu YU21, Man-Ru FAN2, Hong-Yang XUE2, Lin-Xin YU2, Bing-Hui LI1,22, Lu-Yao LI22, Lin-Lu MA1, Xiang-Ying REN22,42, Na WANG22,42, Hong WENG1, Ming-Juan ZHAO1, Hao ZI1,22, Di HUANG1,2, Li-Sha LUO1,2, Qiao HUANG1,2, Yun-Yun WANG1,2, Xian-Tao ZENG1,2, Zhen-Shun CHENG6,43*, Xiao-Mei YAO44*, Xing-Huan WANG1,2,6*Position Article and Guideline209-2267Analysis of the disease burden of ischemic heart disease attributable to dietary factors in china from 1990 to 2017Guo-Xiang TIAN, Zhu SUN, Yun-Tao WU, Wei ZHANG, Wan-Lin WEIResearch227-2328Retrospective analysis of clinical features in acute hyperleukocytic leukemiaPan LIU, Ming-Hui LIU, Fu-Ling ZHOUResearch233-2389International coordinated strategy of prevention and treatment of major communicable disease: A rapid systematic reviewJia-Yu DUAN, Ruo-Yu WANG, Shu ZHANG, Zheng-Gang BAIResearch239-247