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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

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In 1864, the first barbiturate (barbituric acid) was synthesized.

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By definition, when a medication is administered intravenously, its bioavailability is 100%.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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