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Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Electrons Are Shared in Covalent Bonds Electrons Are Shared in Covalent Bonds
Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
Positive and negative selection during T-cell development. Positive and negative selection during T-cell development.
Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ... Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ...
The charge for telephone calls T is partly constant and partly varies with the number N of ... The charge for telephone calls T is partly constant and partly varies with the number N of ...
Mechanisms of positive control of transcription Mechanisms of positive control of transcription
Video: Genetic distance between human groups

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