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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Local and long–distance cell communication in animals. Local and long–distance cell communication in animals.
Intramuscular drug administration: (c) the needle is inserted at a 90° angle: Source: Pearson Educat Intramuscular drug administration: (c) the needle is inserted at a 90° angle: Source: Pearson Educat
Sterile field instructions Sterile field instructions
The level in the coolant recovery system raises and lowers with engine temperature. The level in the coolant recovery system raises and lowers with engine temperature.
Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor
Sea-Level Pressure Sea-Level Pressure
Video: Bacteriophage (Virus) - Mice Experiment

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