Funding for this research was provided by:
Beijing Natural Science Foundation (7202052)
Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support (XMLX201825)
National Natural Science Foundation of China (81471511)
New Star Personnel Training Plan of Chao-Yang Hospital (WHZ CYXX-2017-19)
Famous Doctors Personnel Training Plan of Chao-Yang Hospital (YL CYMY-2017-21)
Received: 17 August 2020
Accepted: 7 March 2021
First Online: 16 March 2021
Ethics approval and consent to participate
: Ethical approval was given by the medical ethics committee of Beijing Chao-Yang Hospital. All procedures were performed in accordance with ethical standards developed by the institutional and national research committee. All the participants provided written consent to participate in the study.
: Not applicable.
: The authors declare no competing interests.