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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.

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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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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.

Aerial and close-up views of a large biodiversity experiment in Cedar Creek, Minnesota. Each of the Aerial and close-up views of a large biodiversity experiment in Cedar Creek, Minnesota. Each of the
Renzo Piano Building Workshop, Aerial view of Kansai International Airport, Osaka, Japan. Renzo Piano Building Workshop, Aerial view of Kansai International Airport, Osaka, Japan.
Tall pad extensions can also be used to gain access to the frame of a vehicle. This position is ... Tall pad extensions can also be used to gain access to the frame of a vehicle. This position is ...
A vehicle emission control information (VECI) sticker on a flexible fuel vehicle. A vehicle emission control information (VECI) sticker on a flexible fuel vehicle.
Start the vehicle’s engine and let run at 1000–1500 RPM. The engine is now running on fuel ... Start the vehicle’s engine and let run at 1000–1500 RPM. The engine is now running on fuel ...
Light Vehicle Diesel Engines Light Vehicle Diesel Engines
Video: New DNA Strand Replication

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