Hu, X.
Chen, S.
Xie, C.
Li, Z.
Wu, Z.
You, Z.
Article History
Received: 26 September 2019
Accepted: 18 October 2020
First Online: 2 January 2021
Compliance with ethical standards
:
: The authors declare no conflicts of interest.
: The study was approved by the ethics committee of the Institutional Review Board of Affiliated Dongguan People's Hospital, Southern Medical University (Dongguan People's Hospital) and performed in strict accordance with the Declaration of Helsinki.
: All the participants, or their parents or guardians, provided informed consent before enrollment.