Funding for this research was provided by:
National Natural Science Foundation of China (81601677, 81571892)
Science and Technology Innovation Project for Academicians of Chongqing (cstc2017jcyj-yszxX0007)
Medical Research Funding of PLA (AWS14C003, 17QNP005)
Text and Data Mining valid from 2019-12-01
Received: 16 September 2019
Accepted: 16 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethical and Protocol Review Committee of the Army Medical University (No. TMMU2012009). Informed consent was obtained from the patients or their next of kin.
: Not applicable.
: All authors declare that they have no competing interests.