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Authors
Wang, Qiong
Ren, Longfei
Wang, Wenhao
Xu, Weihua
Wang, Yang
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Funding
Funding for this research was provided by:
China Medical Board (15-229)
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Article History
Received: 11 March 2019
Accepted: 31 October 2019
First Online: 8 November 2019
Ethics approval and consent to participate
: This study received ethical approval from the Committee on Human Experimentation of China Medical University and all research processes met ethical standards. Written informed content was obtained from the participants prior to the survey.
: Not applicable.
: The authors declare that they have no competing interests.
