Blindness in Third World, AIDS among topics as world's ophthalmologists meet in Toronto.
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D000163:Acquired Immunodeficiency Syndrome / Q000150:complications*; D001766:Blindness / Q000150:complications* / Q000517:prevention & control / Q000628:therapy; D003906:Developing Countries; D006801:Humans; D007391:International Cooperation; D009864:Ontario; D009885:Ophthalmology