In the article listed above, there is an error in the author byline. Peter Carmeliet should be added as an author. Dr. Carmeliet is affiliated with VIB Vesalius Research Center, K.U. Leuven, Leuven, Belgium.

The Acknowledgments should read as follows: The authors thank Dr. Zhenhua Xu, Wilmer Eye Institute, for her helpful discussions about the WB experiments, and Dr. Junsong Gong, Wilmer Eye Institute, for his technical assistance.

The Author Contributions should read as follows: H.H. designed the study, performed experiments, interpreted data, and wrote the manuscript. J.H., D.J., Y.W., Y.L., S.W., and E.J.D. performed experiments and interpreted data. G.A.L. and R.D.S. discussed the study and reviewed and edited the manuscript. P.C. generated and provided the PlGF knockout mice. H.H. is the guarantor of this work and, as such, had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.

The online version reflects these changes.