Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The horizontal fraction bar was introduced by the Arabs.
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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.
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The longest a person has survived after a heart transplant is 24 years.
An alpine marmot at the end of summer. Note the fattened belly.
Bonsai Tree
Pneumonia patient’s chest x-ray. Note the irregular areas of density.
The path of the conveyor is complex and affected by deep ocean topography