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Authors
Chai, Ning
Lang, Zhongliang
Wang, Minggang
Chu, Yanjun
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Article History
Received: 16 August 2019
Accepted: 28 October 2019
First Online: 4 December 2019
Compliance with ethical standards
: All procedures performed in studies involving human participants were approved by the institutional ethics committee and adhered to the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The authors declared no potential conflicts of interest with respect to the research, authorship, and publication of this article.
: Informed consent and permission was obtained from the patient for publishing the identifiable photographs and necessary data before we submitted this article.
