Funding for this research was provided by:
Key Programme (U1704283)
Article History
Received: 27 December 2018
Accepted: 1 November 2019
First Online: 14 November 2019
Ethics approval and consent to participate
: Mice were maintained in a SPF-class animal laboratory in compliance with the ARVO Statement for the Use of Animals in Ophthalmic and Vision Research. For the use of umbilical cord, written informed consent was obtained from the donors. All procedures used in this study were approved by Henan Provincial Eye Hospital Ethics Committee in compliance with the National Institutes of Health guidelines.
: Not applicable.
: The authors declare that they have no competing interests.