Funding for this research was provided by:
Chinese Academy of Sciences Key Project (HJTY-2017-A07)
Text and Data Mining valid from 2019-09-18
Received: 2 August 2018
Accepted: 21 August 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: The study protocol has been approved by the Ethics Board of Shanghai University of Medicine and Health Sciences (approval number 2017ZGH). Signed consent forms will be obtained from all participants prior to their participation in the trial.
: Not applicable.
: The authors declare that they have no competing interests.