1Positive effect of review and approval system reform on clinical trialsNI Na, CUI Ran-ran, ZHENG Yan, DENG hong-zhi, ZHOU Bin1825-18292Trends of new drug R&D and approval by FDA: an analysis of the data of application of new molecular entities from 1985 to 2019BAI Lin, FAN Ping-an, SHI Lu-wen, CHEN Jing1830-18353A new drug for treatment of mantle cell lymphoma:Bruton's tyrosine kinase inhibitor-zanubrutinibWANG Chun-hui, ZHANG Xue-jiao, Lü Qian-zhou1836-18404A new treatment option of inflammatory bowel disease:gut selective integrin inhibitor-vedolizumabLI Hui-bo, LIU Fang, ZHAI Suo-di1841-18455Review and analyses of progress and safety monitoring of clinical trials of COVID-19PEI Xiao-jing, WANG Hai-xue, WANG Tao1846-18496Infection titer detection of Sendai virus vector by flow cytometryFU Zhi-hao, WANG Jun-zhi1850-18547Research progress in HIV reverse transcriptional inhibitors acting on apoliprotein B mRNA-editing enzyme catalytic polypetide proteinLI Jun-jie, LUO Rong-hua, YANG Liu-meng, WANG Ting, MA Wen-jie, HUANG Ning1855-18608Application of high content analysis in the study of toxicity mechanism of drug mitochondrial damageSONG Jia-min, WANG Meng, CHEN Mei-ling1861-18669Efficacy and safety of clindamycin hydrochloride palmitate dispersion tablets for treatment of chronic periodontitisZHANG Jing, ZHENG Jing-jing, WU Ying, WU Min1867-187010Exploration on increasing administration accuracy of injectable new drugs in Phase Ⅰ clinical trialsYANG Dan-dan, JIANG Bo, HU Yin, GUAN Yan-lu, JIANG Qian-qian, RUAN Zou-rong1871-187411A comparative study of the lipid-regulating effects of long gypenosides and gypenosidesWANG Rong, LIU Xue-feng, SU Xi, LUO Wen-ting, YUE Chen-xing, ZHANG Qiu-dong, SHENG Jin-fang1875-188012Quality evaluation of Centella asiatica based on sensory characteristics and gray relational analysisLIU FU-song, LI Yao-yao, NIE Xu-qiang, WU Fa-ming, XIE Jian1881-188913Comparison of membrane separation method and alcohol precipitation method as purification process of Weixuening mixtureDONG Tai-wei, ZOU Jun-bo, ZHANG Xiao-fei, WANG Jing-yuan, SHI Ya-jun, SUN Jing1890-189514Quality evaluation of cefotiam hydrochloride for injectionWANG Li-xin, CHONG Xiao-meng, YAO Shang-chen, YIN Li-hui, XU Ming-zhe1896-190515Preparation of the proposed 10 th national standard reference for human chorionic gonadotrophin by bioassayWU Yan-lin, ZHANG Yuan, WAN Long-yan, WANG Pei-hua, TANG Li-ming, WANG Qiao-xu, RUI Jing, HUA Xiao-dong, HOU Juan, GONG Yuan-yuan, XIA Xing-hui, YE Fei, LI Yan, WU Hai-ping, ZHANG Ming-lu, HE Qing, YANG Ze-an, GAO Hua1906-191016Analysis of withdrawal outcomes of 32 patients with melanoma in clinical trialsLI Dan, ZHANG Yan, LU Dong-qing, JIAN Kang1911-191417Literature analysis of programmed death 1/programmed death ligand 1 inhibitors-induced rare adverse drug reaction skin vasculitisQIU Xue-jia, REN Bing-nan, LIAN Yu-fei, FANG Ling-zhi1915-1920 