Received: 8 May 2018
Accepted: 26 September 2019
First Online: 28 November 2019
Ethics approval and consent to participate
: The need for ethic approval was approved by the institutional review board of Sichuan Cancer Hospital & Institute, Sichuan Cancer Center. Written informed consent was obtained from the patient to report and publish individual patient data.
: Written informed consent was obtained from all patients to report and publish all patients’ clinical data including images that may be identifiable. A copy of the written consent is available for review by the editor of this journal.
: The authors declare that they have no competing interests.