Yuan, Lei
Chen, Zhongqiang http://orcid.org/0000-0002-6595-1910
Li, Weishi
Sun, Chuiguo
Liu, Zhongjun
Liu, Xiaoguang
Article History
Received: 10 November 2020
Accepted: 3 March 2021
First Online: 7 April 2021
Declarations
:
: Ethics approval was obtained from the Peking University Third Hospital Medical Science Research Ethics Committee (IRB00006761-M2020049) and registering in the Chinese Clinical Trial Registry (registration ID: ChiCTR2000032957. ExternalRef removed).
: This study was approved by the Ethical Committee of our hospital and was conducted according to the principles of the Declaration of Helsinki. The informed consent was waived because this was a retrospective study.
: Not applicable.
: The authors declare no competing interests.