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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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Rutherford's gold foil experiment demonstrating that most of the volume of an atom is empty spa
The Helium Atom.
Benzene delocalized electrons
Atom Structure
Atom formation
A triatomic molecule is oriented as follows along the x-axis: atom 1 of mass m is at the ...