Liu, Qin
Ma, Jian
Deng, Hua
Huang, Shu-Jun
Rao, Jiao
Xu, Wei-Bin
Huang, Jing-Si
Sun, Shan-Quan
Zhang, Liang http://orcid.org/0000-0003-0782-0688
Article History
Received: 15 November 2019
Accepted: 15 June 2020
First Online: 29 June 2020
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of Guangdong Women and Children Hospital (Reference number: LXSC201903020003) and conducted in accordance with the Declaration of Helsinki. Consent to participate was obtained from parents of the minors included in this study.
: Not applicable.
: The authors declare that they have no competing interests.