Text and Data Mining valid from 2018-07-16
Received: 17 December 2017
Accepted: 9 July 2018
First Online: 16 July 2018
Ethics approval and consent to participate
: The study was approved by the research ethics committee of the Third Affiliated Hospital of Sun Yat-sen University. Informed consent was obtained from all individual participants included in the study.
: Informed consents for image publication were taken from all the patients and one of the authors, Bowen Zheng.
: The authors declare that they have no competing interests.
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