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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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The horizontal fraction bar was introduced by the Arabs.
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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.
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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.