Received: 10 March 2021
Accepted: 26 July 2021
First Online: 16 August 2021
: All the methods were performed in accordance with Declaration of Helsinki. The study was approved by the ethics committee of the Children’s Hospital of Chongqing Medical University, Approval Number: (2018) IRB (STUDY) NO. 121, and registered in the Chinese Clinical Trial Registry (Registration number: ExternalRef removed). Before conducting interviews and assessments, a brief summary of objectives, questions, and qualification of researchers were presented for all potential participants in face-to-face meetings. All participants’ parents signed an informed consent forms.
: Not applicable.
: The authors declare that they have no conflict of interest in regard to this work.