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

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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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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Medication errors are three times higher among children and infants than with adults.

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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Relationship of the spindle-assembly checkpoint (SAC) with the cell-cycle machinery Relationship of the spindle-assembly checkpoint (SAC) with the cell-cycle machinery
Structure of the ovary and uterine (fallopian) tube. Figure illustrates stages of ovum development a Structure of the ovary and uterine (fallopian) tube. Figure illustrates stages of ovum development a
Dose–response relationship Dose–response relationship
The overlapping relationship among research, evidence-based practice The overlapping relationship among research, evidence-based practice
Relationship between the number of CAG repeats in a gene and the age of onset of Huntington disease. Relationship between the number of CAG repeats in a gene and the age of onset of Huntington disease.
Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh Relationship Between the Atlas and the Axis. The Dens of the Axis Provides a Pivotal Point Around Wh
Video: Alternative Energy Sources

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