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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

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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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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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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Rise of the mobile phone Rise of the mobile phone
Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
A typical beginning technician tool set that includes the basic tools to get started. A typical beginning technician tool set that includes the basic tools to get started.
Basic Design of the Driving and Cell Phone Distraction Experiment Basic Design of the Driving and Cell Phone Distraction Experiment
How to find two positive angles less than 360° that have a tangent of −2.25 How to find two positive angles less than 360° that have a tangent of −2.25
Will Posting Nutritional Content in Restaurants Have a Positive Impact on the Obesity Epidemic? Will Posting Nutritional Content in Restaurants Have a Positive Impact on the Obesity Epidemic?
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