Yue, Jieya
Liu, Jun
Zhao, Yingxi
Williams, Sarah
Zhang, Bo
Zhang, Lin
Zhang, Qiannan
Liu, Xin
Wall, Stephen
Zhao, Gengli
Article History
Received: 12 July 2021
Accepted: 11 January 2022
First Online: 25 January 2022
Declarations
:
: Ethical approval was obtained by Peking University First Hospital Biomedical Research Ethics Committee. All participants gave verbal informed consent. The Research Ethics Committee approved the use of verbal informed consent, mainly to protect privacy of the research participants and reduce social desirability bias. We recorded the verbal informed consent process for each participant to participate and be recorded prior to the start of interview.
: Not applicable.
: The authors declare that they have no competing interests.