AUTHOR=Yang Yuan , Li Wen , Zhang Ling , Zhang Qinge , Cheung Teris , Hall Brian J. , Xiang Yu-Tao TITLE=The Impact of COVID-19 Pandemic on Clinical Research in China: Challenges and Progress JOURNAL=Frontiers in Medicine VOLUME=7 YEAR=2020 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2020.00523 DOI=10.3389/fmed.2020.00523 ISSN=2296-858X