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On average, the stomach produces 2 L of hydrochloric acid per day.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Risk factors for falls Risk factors for falls
W. A. Rogers’s engraving, “Out of the Game,” showed one injured boy tending to another. It appeared W. A. Rogers’s engraving, “Out of the Game,” showed one injured boy tending to another. It appeared
As in this photo from Tampa, Florida, hidden cameras now follow us almost everywhere we go. How do ... As in this photo from Tampa, Florida, hidden cameras now follow us almost everywhere we go. How do ...
Richard Serra, Tilted Arc. Richard Serra, Tilted Arc.
Example of a choice board used in studies of decision making. This one includes four factors for ... Example of a choice board used in studies of decision making. This one includes four factors for ...
Factors in replication of organelle genomes Factors in replication of organelle genomes
Video: Anatomy and Chemical Makeup of a Single Hair (Animation)

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