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Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
A typical eukaryotic cell.
Jane Addams (1860–1935), a recipient of the Nobel Prize for Peace, worked on behalf of poor ...
A typical office layout.
A cutaway view of a typical two-stage turbine electric fuel pump.
A typical port fuel-injected system showing a vacuum-controlled fuel-pressure regulator.
Typical laboratory chemical hood.