Funding for this research was provided by:
Natural Science Foundation of Guangdong Province (2018A0303130309)
Sun Yat-sen University Clinical Research 5010 Program (NO.2018023)
Text and Data Mining valid from 2020-02-11
Received: 27 October 2019
Accepted: 23 January 2020
First Online: 11 February 2020
Ethics approval and consent to participate
: This retrospective study was approved by the ethics committee of the Third Affiliated Hospital of Sun Yat-sen University as No. 02-008-01.
: All presentations of case reports have individually signed consent for publication. Chinese version and translated consent were shown in the supplementary file.
: The authors declare that they have no competing interests.