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Authors
Kou, Jianqiang
Guo, Jianwei
Ji, Xiangli
Tang, Xiaojie
Liu, Xiangyun
Sun, Yuanliang
Zheng, Xiujun
Wang, Yingzhen
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Article History
Received: 7 January 2020
Accepted: 4 June 2020
First Online: 11 June 2020
Ethics approval
: This article is designed and submitted acting on guideline of IRB of Affiliated Hospital of Qingdao University.
: All patients have signed consent forms to participate this study. All the patients have signed consent forms to publish images or other personal or clinical details in the article.
: The authors declare that they have no competing interests. No funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript.
