Funding for this research was provided by:
National Natural Science Foundation of China (91739111, 81900448)
Article History
Received: 28 February 2020
Revised: 13 April 2020
Accepted: 21 April 2020
First Online: 18 May 2020
Compliance with ethical standards
:
: None.
: The study was conducted in accordance with the ethical principles of the Declaration of Helsinki and approved by the Clinical Research Ethics Board of Beijing Anzhen Hospital, Capital Medical University (approval number: 2019020X).
: Not applicable
: The authors declare that there are no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.