Funding for this research was provided by:
Natural Science Foundation of Guangdong Province (2017A030313434)
Soft Science Project of Guangdong Science and Technology Plan (2016A070706007)
Guangdong Schools’ moral education innovation project (2015DYZD023)
Guangdong Universities’ creative talents project (2015KQNCX039)
China Education Minstry’s Clinical teaching research project in higher medical education (Edu-CR-2016-8-3)
Received: 31 January 2018
Accepted: 6 June 2019
First Online: 1 July 2019
Ethics approval and consent to participate
: All subjects provided verbal informed consent to inclusion before they participated in the study, and the protocol was approved by the Ethics Committee of the Medical College of Shantou University (Code: SUMC-2016-39).
: Not applicable.
: The authors declare that they have no competing interests.