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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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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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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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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Cellular locations of pattern recognition molecules of the innate immune system Cellular locations of pattern recognition molecules of the innate immune system
Immunization with a vaccine. A healthcare professional is injecting a vaccine into the patient’s arm Immunization with a vaccine. A healthcare professional is injecting a vaccine into the patient’s arm
Types of Immunity Types of Immunity
The Cells of the Innate Response The Cells of the Innate Response
Innate Defenses Innate Defenses
Inflammation (innate and adaptive immunity) Inflammation (innate and adaptive immunity)
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