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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Sickled and normal red blood cells Sickled and normal red blood cells
Blood flow through the heart. Blood flow through the heart.
Pressure Zones Drive Winds Pressure Zones Drive Winds
Apply pincer pressure to TrPs in sternocleidomastoid (SCM) muscle. Turn head to side to expose SCM; ... Apply pincer pressure to TrPs in sternocleidomastoid (SCM) muscle. Turn head to side to expose SCM; ...
5-4 The relationship between vapor pressure and temperature—in this case for water. As the ... 5-4 The relationship between vapor pressure and temperature—in this case for water. As the ...
Measuring Blood Pressure Measuring Blood Pressure
Video: Carbon fixing adaptations Animation

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