After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Heart Diagram
The mammalian heart and the route blood takes through it.
Examples of heart rhythms: sinus bradycardia.
Heart valves in closed position viewed from the top.
Aspirin and most other NSAIDs block prostaglandins.