Yang, Jiang
Zhen, Huang
Hairong, Xu
Yemei, Gao
Xiaohui, Niu
Funding for this research was provided by:
Beijing Hospitals Authority Youth Programme (20170406)
Article History
Received: 28 August 2020
Accepted: 9 February 2021
First Online: 26 March 2021
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
: All authors are in agreement with the publication of the manuscript.
: The authors declare no conflict of interest.