Funding for this research was provided by:
Shanghai Municipal Health Commission Science and Research Fund (SMHCSRF-20184Y0137)
Text and Data Mining valid from 2020-02-18
Received: 12 August 2019
Accepted: 22 January 2020
First Online: 18 February 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethics Committee of Shanghai Sixth People’s Hospital East Affiliated to Shanghai University of Medicine & Health Sciences. Written informed consent was obtained from all individual patients included in the study.
: Not applicable.
: The authors declare that they have no competing interests.