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The horizontal fraction bar was introduced by the Arabs.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
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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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