Chen, Hang
Yang, Fei
Ye, Mao
Liu, Hui
Zhang, Jing
Tian, Qin
Liu, Ruiqi
Yu, Qing
Li, Shangyingying
Tu, Shengfen
Article History
Received: 6 November 2019
Accepted: 3 March 2020
First Online: 7 March 2020
Ethics approval and consent to participate
: Ethics approval for this study (File NO. 2016124) was provided by the Institutional Review Board of Children’s Hospital Affiliated with Chongqing Medical University, Chongqing, China (Chairperson Professor Lu Zhongyi) on 04 December 2016. Each child’s parents signed the informed consent form.
: Not applicable.
: The authors declare that they have no competing interests