Zhu, Jiajia
Liu, Wenxian
Article History
Received: 11 January 2021
Accepted: 14 April 2021
First Online: 22 April 2021
Declarations
:
: This study was approved by the Ethics Committee of Beijing Anzhen Hospital (Approval No. 2019041X). All procedures performed in studies involving human participants were in accordance with the ethics standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethics standards. Written informed consent was obtained from all individual participants included in this study.
: Not applicable.
: The authors declare that they have no competing interests.