Guan, Chengcheng
Gan, Xinhui
Yang, Chengqing
Yi, Mingji
Zhang, Ying
Liu, Shiguo https://orcid.org/0000-0001-6474-4082
Funding for this research was provided by:
National Basic Research Program of China (2016YFC1000306)
National Natural Science Foundation of China (30971586)
Article History
Received: 4 October 2021
Accepted: 13 January 2022
First Online: 17 January 2022
Declarations
:
: The authors declare no competing interests.
: The questionnaire and methodology for this study were approved by the Human Research Ethics committee of The Affiliated Hospital of Qingdao University.
: Written informed consent was obtained from the parents.
: Patients signed informed consent regarding publishing their data and photographs.