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Authors
Yu, Tongtong
Tian, Chunyang
Song, Jia
He, Dongxu
Wu, Jiake
Wen, Zongyu
Sun, Zhijun
Sun, Zhaoqing http://orcid.org/0000-0002-1608-7396
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Funding
Funding for this research was provided by:
Social Development Research Program of Liaoning Province (2011225020)
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Article History
Received: 23 April 2018
Accepted: 3 September 2018
First Online: 10 September 2018
Ethics approval and consent to participate
: This study complies with the Declaration of Helsinki, and Shengjing Hospital of China Medical University Research Ethics Committee approved the research protocol. Written informed consent was formally obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
