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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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The average office desk has 400 times more bacteria on it than a toilet.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Determination of the complete genome sequence of Haemophilus influenzae by Venter, Smith, and collea Determination of the complete genome sequence of Haemophilus influenzae by Venter, Smith, and collea
Applying a time strip to the IV container. Applying a time strip to the IV container.
When an engine overheats, often the coolant overflow container boils. When an engine overheats, often the coolant overflow container boils.
Line immunoassay (LIA), also recombinant immunoblot assay (RIBA) and Immuno-stripe, is similar to a ... Line immunoassay (LIA), also recombinant immunoblot assay (RIBA) and Immuno-stripe, is similar to a ...
RNA base sequence of the trp leader region RNA base sequence of the trp leader region
A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ... A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ...
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