About the Authors
Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
Dana Center for Preventive Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SLM SKW EWG BEM. Performed the experiments: SLM JCH EWG. Analyzed the data: SDC BEM EWG. Wrote the paper: SLM JCH SDC BEM SKW EWG.