Funding for this research was provided by:
National Natural Science Foundation of China (81771412, 81771413, and 81971222)
Beijing Municipal Commission of Education (KZ201810025041)
Received: 11 May 2020
Accepted: 5 August 2020
First Online: 14 August 2020
Ethics approval and consent to participate
: Written informed consent was obtained from each patient included in the study. The study protocol was approved by the Xuanwu Hospital of Capital Medical University.
: Not applicable.
: The authors declare that they have no competing interests.