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The Global Burden of Visual Difficulty in Low, Middle, and High Income Countries
- Ellen E. Freeman,
- Marie-Hélène Roy-Gagnon,
- Elodie Samson,
- Slim Haddad,
- Marie-Josée Aubin,
- Claudia Vela,
- Maria Victoria Zunzunegui
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- Published: May 10, 2013
- https://doi.org/10.1371/journal.pone.0063315