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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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The horizontal fraction bar was introduced by the Arabs.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.