Funding for this research was provided by:
Natural Science Foundation of Shanghai (17411965800)
Clinical Research Plan of SHDC (16CR3100B)
Received: 24 August 2020
Accepted: 23 December 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: The study received approval from the Institutional Review Board/Ethics Committee of Xin Hua Hospital (Reference number: XHEC-D-2020-101). Since the participants was children (≤ 10 years old), written informed consent from their parents to participate in the study had been obtained. The study was conducted according to the ethical principles stated in the Declaration of Helsinki.
: Written informed consent for publication of their clinical details and/or clinical images was obtained from the parent/guardian of each patient.
: The authors declare no competing interests.