Funding for this research was provided by:
Natural Science Foundation of Fujian Province (2017J05133)
Startup Fund for scientific research, Fujian Medical University (2016QH017)
Startup Fund for High-level talents of Fujian Medical University (XRCZX2017011)
Article History
Received: 1 December 2019
Accepted: 4 May 2020
First Online: 15 May 2020
Ethics approval and consent to participate
: Before survey, all participants were obtained by written informed consent. The research was approved by the Institutional Review Boards of Fujian Medical University in March 2017(NO: FMU2017024).
: Not applicable.
: The authors declare that they have no competing interests.