Determining the importance of eye diseases in Africa.
De Sole
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D000349:Africa / Q000453:epidemiology; D001766:Blindness / Q000453:epidemiology; D004812:Epidemiologic Methods; D005128:Eye Diseases / Q000453:epidemiology*; D006801:Humans; D014141:Trachoma / Q000453:epidemiology; D014985:Xerophthalmia / Q000453:epidemiology