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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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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Experiment on newt embryos that led to the discovery of Spemann's organizer. Experiment on newt embryos that led to the discovery of Spemann's organizer.
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This chart illustrates the bottom up assumption about government. In this, attitudes, culture, and This chart illustrates the bottom up assumption about government. In this, attitudes, culture, and
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Video: Digestive chemicals - types & enzymes

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