Funding for this research was provided by:
National Key Basic Research Project (2012CB517503 and 2013CB530804)
Received: 7 November 2017
Accepted: 9 July 2019
First Online: 26 July 2019
Ethics approval and consent to participate
: The study was approved by Ethics Committee of Chinese People’s Liberation Army General Hospital (Beijing, China; Number: 038). Written consent was obtained from patients when admission and Helsinki declaration was followed by the study.
: Not applicable.
: The authors declare that they have no competing interests.