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Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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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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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Open-top chambers, such as the one pictured above in a polar desert on Ellesmere Island, are commonl Open-top chambers, such as the one pictured above in a polar desert on Ellesmere Island, are commonl
Tracing the Source of a Water-Borne Disease Tracing the Source of a Water-Borne Disease
Henry Fox Talbot, The Open Door. Henry Fox Talbot, The Open Door.
Calcium channels and muscle contraction: (a) Calcium channels open as the action potential travels ... Calcium channels and muscle contraction: (a) Calcium channels open as the action potential travels ...
Hang the canister from the vehicle’s hood and adjust the air pressure regulator to full OPEN ... Hang the canister from the vehicle’s hood and adjust the air pressure regulator to full OPEN ...
An organizational specialist is hired as a consultant to a company planning to open a coffee ... An organizational specialist is hired as a consultant to a company planning to open a coffee ...
Video: Arthroscopy

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