Liu, Chang
Zhang, Xiangzhong
Wang, Jicheng
Zhang, Yan
Wang, Anshi
Lu, Jian
Huang, Yanlin
Liu, Shu
Wu, Jing
Du, Li
Yang, Jie
Ding, Hongke
Liu, Ling
Zhao, Xin
Yin, Aihua
Funding for this research was provided by:
Medical Science and Technology Research Project of Guangdong Province (A2016225)
Article History
Received: 16 December 2018
Accepted: 4 February 2019
First Online: 18 February 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: 201701085). 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.
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