Zong, Haifeng http://orcid.org/0000-0002-8738-0637
Huang, Zhifeng
Fu, Yongping
Chen, Xueyu
Yu, Yanliang
Huang, Yingsui
Huang, Yichu
Sun, Hongyan
Yang, Chuanzhong
Article History
Received: 12 October 2022
Revised: 13 October 2023
Accepted: 18 October 2023
First Online: 12 December 2023
Competing interests
: The authors declare no competing interests.
: This study was reviewed by the hospital’s ethics committee (no. SFYLS2019119). Informed consent was provided by each child’s immediate family or guardian before the examination. The study was approved by the Ethics Committee of the Shenzhen Maternity & Child Healthcare Hospital. Oral and written informed consent was obtained from the parents.