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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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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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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

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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.

Well pads, roads, and seismic lines associated with oil and gas extraction in the boreal forest. Well pads, roads, and seismic lines associated with oil and gas extraction in the boreal forest.
Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i
A pleasant smile can go a long way, even through telephone lines. A pleasant smile can go a long way, even through telephone lines.
An air ratchet is a very useful tool that allows fast removal and installation of fasteners, ... An air ratchet is a very useful tool that allows fast removal and installation of fasteners, ...
With all vacuum lines and the intake tube removed, the valve cover can be removed after removing all ... With all vacuum lines and the intake tube removed, the valve cover can be removed after removing all ...
Lines of the posterior thorax Lines of the posterior thorax
Video: The primary factors that affect circulation - MABP, CO and SVR

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