Liu, Chang
Wang, Anshi
Huang, Yanlin
Zhang, Yan
Ding, Hongke
Wu, Jing
Du, Li
Yang, Jie
Mai, Fei
Zeng, Yukun
Liu, Ling
Zhao, Xin
Zhang, Changbin
Yin, Aihua
Funding for this research was provided by:
Medical Science and Technology Research Project of Guangdong Province (A2019358, A 2018212)
Article History
Received: 2 April 2019
Accepted: 7 November 2019
First Online: 29 November 2019
Ethics approval and consent to participate
: The study has been approved by the Institutional Review Board/ Medical Ethics Committee of Guangdong Women and Children Hospital (IRB reference number: 201711085). Written informed consent was obtained from all participants, their parents or legal guardians (in the case of children under 16).
: Not applicable.
: The authors declare that they have no competing interests.