Wen, Yuan
Huang, Dongsheng https://orcid.org/0000-0002-0987-2273
Zhang, Weiling
Zhang, Yi
Hu, Huimin
Li, Jing
Funding for this research was provided by:
Beijing Hospitals Authority Mission Plan (DFL20180201)
Special Fund of the Pediatric Medical Coordinated Development Center of Beijing Hospitals Authority (XTZD20180203)
Article History
Received: 25 April 2020
Accepted: 20 May 2020
First Online: 29 May 2020
Ethics approval and consent to participate
: This study was conducted in accordance with the declaration of Helsinki and with approval from the Ethics Committee of Capital Medical University, Beijing Tongren Hospital. Written informed consent was obtained from all participants’ guardians.
: Not applicable.
: The authors declare that they have no competing interests.