Text and Data Mining valid from 2020-01-21
Received: 14 October 2019
Accepted: 6 January 2020
First Online: 21 January 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of ShenZhen Hospital, Southern Medical University.
: Written informed consent was obtained from the parents of this patient.
: The authors declare that they have no competing interests.