Article History
Received: 21 July 2020
Revised: 15 November 2020
Accepted: 27 November 2020
First Online: 8 February 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the Ethics Review Committee of the Affiliated Children’s Hospital of Chongqing Medical University (Ethics approval number: 2018-123).
: Informed consent was obtained from legal guardians.
: Patients signed informed consent regarding publishing their data and photographs.
: Availability.