Chen, Weiwei
Fu, Jing http://orcid.org/0000-0002-2939-9479
Sun, Ali
Li, Lei
Sun, Yunyun
Meng, Zhaojun
Article History
Received: 26 June 2021
Accepted: 20 October 2021
First Online: 2 December 2021
Declarations
:
: Ethics committee approval was obtained from the Institutional Review Board of Beijing Tongren Hospital, Capital Medical University (TRECKY2019–146). Informed consent forms signed by the parents of all the participants were obtained prior to the start of the program.
: Not applicable.
: The first author WWC is the Associate Editor of BMJ Ophthalmology. The authors declare that they have no other competing interests.