Funding for this research was provided by:
Ministry of Education Humanities and Social Science Project (17YJA740063)
Guangdong Province Education Promotion Project ((68)
Text and Data Mining valid from 2019-01-09
Received: 30 August 2018
Accepted: 28 December 2018
First Online: 9 January 2019
Ethics approval and consent to participate
: This study has been approved by the Research Ethics Committee of Shantou University Medical College. All participants were informed that their participation was voluntary. The study objective was explained to all participants, and verbal consent was obtained and recorded at the beginning of the focus groups, which was proved by the ethics committee. All online surveys were anonymized and untraceable. No individual subject identifiers were collected.
: Not applicable.
: The authors declare that they have no competing interests.
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