In 1864, the first barbiturate (barbituric acid) was synthesized.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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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.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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If you could remove all of your skin, it would weigh up to 5 pounds.
Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. (
Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th
Sources of income for U.S. population aged 65 and over.
Sea-Level Rise
Regional Variation in Income and Access to the Sea