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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
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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.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.