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Authors
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Ou, Ya-Nan
Xu, Wei
Li, Jie-Qiong
Guo, Yu
Cui, Mei
Chen, Ke-Liang
Huang, Yu-Yuan
Dong, Qiang
Tan, Lan
Yu, Jin-Tai http://orcid.org/0000-0002-7686-0547
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Article History
Received: 6 March 2019
Accepted: 12 June 2019
First Online: 29 June 2019
Ethics approval and consent to participate
: The study was approved by institutional review boards of all participating institutions, and written informed consent was obtained from all participants or their guardians according to the Declaration of Helsinki (consent for research).
: Not applicable.
: The authors declare that they have no competing interests.
