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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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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.

Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto
Passenger - Let Her Go Passenger - Let Her Go
Herbert Spencer (1820–1903), sometimes called the second founder of sociology, coined the term ... Herbert Spencer (1820–1903), sometimes called the second founder of sociology, coined the term ...
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ... Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
The nucleus is bounded by a double membrane called the nuclear envelope The nucleus is bounded by a double membrane called the nuclear envelope
Video: Miller's reaction chamber experiment Animation

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