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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Deserts differ across the world. (a) Acacia trees between a gravel plain and sand dunes in the Namib
At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da



