Zhang, Dangui
Jiang, Zichun
Xie, Yu
Wu, Weiming
Zhao, Yixuan
Huang, Anqi
Li, Tumei
Ba-Thein, William
Article History
Received: 26 July 2021
Accepted: 8 March 2022
First Online: 22 March 2022
Declarations
:
: The study was approved by the Ethics Committee of Shantou University Medical College (SUMC-2017-32) and the participating hospitals (No. 2017126 & No. 2017–31). Participation in the study was voluntary and all study participants provided written informed consent after reading the study objectives and data utilization before answering the survey. This study was carried out in accordance with the Code of Ethics of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.