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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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