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Authors
Zhuang, Qian
Shen, Chong
Chen, Yanchun
Zhao, Xianghai
Wei, Pengfei
Sun, Junxiang
Ji, Yanni
Chen, Xiaotian
Yang, Song https://orcid.org/0000-0002-7792-5752
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Article History
Received: 17 April 2019
Accepted: 23 October 2019
First Online: 6 November 2019
Ethics approval and consent to participate
: Written informed consent was obtained from all participants. The research protocol was approved by the ethics committee of Nanjing Medical University and written informed consent was obtained from all subjects during epidemiological interviews.
: Not applicable.
: The authors declare that they have no competing interests.
