Funding for this research was provided by:
Beijing Hospitals Authority Youth Programme (QML 20191902)
Beijing Hospitals Authority Yangfan Programme (ZYLX201815)
National Major Science and Technology Projects of China (2018ZX10715-005)
Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support (ZYLX201807)
Article History
Received: 30 August 2021
Accepted: 16 February 2022
First Online: 1 March 2022
Declarations
:
: Before the survey, all participants were informed of the purpose and procedure of the survey and signed an online informed consent. The study protocol was performed in accordance with the Declaration of Helsinki. The Ethics Committee of Beijing Anding Hospital affiliated to Capital Medical University has approved this investigation (No. 2020-10).
: Not applicable. All participants participated in the survey anonymously.
: The authors declare that they have no competing interests.