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Adapted from Keynote Addresses to the 5th General Assembly of the International Agency for the Prevention of Blindness, Berlin, Germany, May 9, 1994, and to the International Congress of Ophthalmology, Toronto, Canada, June 29, 1994.
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Sommer, A. Toward affordable, sustainable eye care. Int Ophthalmol 18, 287–292 (1994). https://doi.org/10.1007/BF00917832
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DOI: https://doi.org/10.1007/BF00917832