Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
Types of changes in chromosome structure
Structure of a generalized synovial joint.
Levels of structure in proteins
Structure of the human immunodeficiency virus (HIV).
How to choose the right payment plan with changing conditions (Question 3)