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Authors
Lu, Jingru
Zhao, Xiangzhong
Paiardini, Alessandro
Lang, Yanhua
Bottillo, Irene
Shao, Leping https://orcid.org/0000-0003-3493-2714
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Article History
Received: 17 October 2017
Accepted: 28 June 2018
First Online: 13 July 2018
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: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Affiliated Hospital of Qingdao University and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The authors declare that they have no competing interests.
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