Funding for this research was provided by:
Australia-China Council (ACC00431)
China Postdoctoral Science Foundation (2017M622612)
Text and Data Mining valid from 2018-05-25
Received: 19 December 2017
Accepted: 21 May 2018
First Online: 25 May 2018
Ethics approval and consent to participate
: Ethical approval was granted from Human Research Ethics Committee of Xiang Ya School of Nursing, Central South University (Project Number 20137801). Returning the questionnaire was a voluntary way to opt-into the study, so no consent form was required in the present study.
: The authors declare that they have no competing interests.
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