Funding for this research was provided by:
National Natural Science Foundation of China (81871637)
The Mega-projects of National Science Research for the 13th Five-Year Plan (2017ZX10201101)
the Non-profit Central Research Institute Fund of Chinese Academy of Medical Sciences (2018PT31042)
Text and Data Mining valid from 2020-02-17
Received: 16 October 2019
Accepted: 30 January 2020
First Online: 17 February 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of the First Affiliated Hospital of China Medical University. In addition, written informed consents were obtained from all participants.
: Not Applicable.
: The authors declare that they have no competing interests.