Funding for this research was provided by:
National Natural Science Foundation of China (81601832)
Received: 8 December 2019
Accepted: 19 May 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board at Army Medical University, and all patients signed an informed consent form before participation. All experiments involving human subjects were performed in accordance with the World Medical Association’s Declaration of Helsinki (1964 and its later amendments).
: Not applicable.
: The authors declare that they have no competing interests.