Funding for this research was provided by:
Beijing Hospital Authority Ascent Plan (DFL20191201)
The Pediatric Medical Coordinated Development Center of Beijing Municipal Administration of Hospitals (XTZD20180103)
Received: 10 October 2020
Accepted: 28 July 2021
First Online: 12 August 2021
Change Date: 2 November 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/S40463-021-00547-5
: The study protocol was reviewed and approved by the board of medical ethics of Beijing Children’s Hospital.
: Not applicable.
: The authors declare that they have no competing interest.