Zhou, Lixin
Wu, Bo
Wu, Liyong
Cheng, Xin
Hu, Bo
Yao, Ming
Zhu, Yicheng
Peng, Bin
Cui, Liying
Ni, Jun
Funding for this research was provided by:
Peking Union Medical College (2015zlgc0718, 2014zlgc0728)
Article History
Received: 10 November 2019
Accepted: 22 September 2020
First Online: 29 September 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committees of Peking Union Medical College Hospital, and informed consent was assumed if the respondent chose to complete the questionnaire.
: Not applicable.
: All authors declare that they have no competing interests.