Wang, Fang
Zhang, Jianmin
Yu, Jie
Tian, Muyang
Cui, Xiaohuan
Wu, Anshi http://orcid.org/0000-0001-5851-6622
Article History
Received: 24 March 2019
Accepted: 29 July 2019
First Online: 7 August 2019
Ethics approval and consent to participate
: This study was performed according to the Declaration of Helsinki after the approval of the Ethical Committee of Beijing Children’s Hospital of Capital Medical University, Beijing, China (Ethical Committee No 2016–67) on 16 May 2016. Written informed consent for participation was obtained from the parents or guardians of all patients.
: Not applicable.
: The authors declare that they have no competing interests.