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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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People about to have surgery must tell their health care providers about all supplements they take.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.