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Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Testing Distance Visual Acuity Using a Snellen Eye Chart Testing Distance Visual Acuity Using a Snellen Eye Chart
Testing a dual cell wideband oxygen sensor can be done using a voltmeter or a scope. The meter ... Testing a dual cell wideband oxygen sensor can be done using a voltmeter or a scope. The meter ...
The testing procedure that was used to evaluate the neuropsychological status of split-brain ... The testing procedure that was used to evaluate the neuropsychological status of split-brain ...
Testing the strength of the sternocleidomastoid muscle against resistance Testing the strength of the sternocleidomastoid muscle against resistance
Testing the triceps reflex Testing the triceps reflex
Testing patellar reflex, client in a supine position Testing patellar reflex, client in a supine position
Video: Monohybrid crosses

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