Funding for this research was provided by:
National Basic Research Program of China (973 Program) (2018YFA0208902)
National Natural Science Foundation of China (NSFC No.U1604281, 81672318)
Natural Science Foundation of Tianjin Municipal Science and Technology Commission (No. 18JCYBJC27900)
Beijing Science Foundation of China (BJSFC No.7171008)
National Key Scientific Instrument Special Program of China (Grant No. 2011YQ03013405)
Text and Data Mining valid from 2020-02-10
Received: 7 October 2019
Accepted: 22 January 2020
First Online: 10 February 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the Chinese PLA General Hospital.
: We confirm that all authors agree with the submissions currently (and thereafter).
: The authors declare that they have no competing interests.