Funding for this research was provided by:
Shanghai Municipal Commission of Health and Family Planning Youth Project (20184Y0197)
Text and Data Mining valid from 2020-03-11
Received: 5 January 2020
Accepted: 4 March 2020
First Online: 11 March 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Shanghai Sixth People’s Hospital East Affiliated to Shanghai University of Medicine & Health Sciences. Written informed consent was obtained from all patients enrolled in the investigation.
: All the patients in this study have given their informed consent for the article to be published.
: The authors declare that they have no competing interests.