Funding for this research was provided by:
National Natural Science Foundation of China (81871637)
Mega-projects of National Science Research for the 13th Five-Year Plan (2017ZX10201101)
Non-profit Central Research Institute Fund of the Chinese Academy of Medical Sciences (2018PT31042)
Text and Data Mining valid from 2020-02-26
Received: 6 September 2019
Accepted: 21 January 2020
First Online: 26 February 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the First Affiliated Hospital of China Medical University and all subjects provided written informed consent.
: Not applicable.
: The authors declare that there are no competing interests associated with this study.