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Authors
Wang, Rong
Liu, Chuanyong https://orcid.org/0000-0002-8615-3897
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Article History
Received: 16 April 2019
Accepted: 13 August 2019
First Online: 22 August 2019
Ethics approval and consent to participate
: This study, with use of the student survey, was identified as exempt from supervision by the Ethics Committee of Shandong University, Cheeloo College of Medicine. Students were informed about the study and signed consent forms.
: Not applicable.
: No conflicts of interest, financial or otherwise, are declared by the authors.
