Received: 8 May 2020
Accepted: 30 July 2020
First Online: 12 August 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board of the Xiangya Hospital Central South University. All patients gave written informed consent before participating in this study.
: All patients and their families gave their written informed consent for the publication of their individual data and identifying photographs.
: The authors declare that they have no competing interests.