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Authors
Wu, Jian-Ting
Liu, Shou-Sheng
Xie, Xiang-Jun
Liu, Qun
Xin, Yong-Ning https://orcid.org/0000-0002-3692-7655
Xuan, Shi-Ying
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (31770837)
Qingdao People’s Livelihood Science and technology plan (18-6-1-68-nsh)
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Article History
Received: 31 October 2019
Accepted: 18 February 2020
First Online: 24 February 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Qingdao Municipal Hospital before participation (Approval NO.2017–20). All the subjects have signed written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
