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Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

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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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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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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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Palpating the Knee Palpating the Knee
Knee joint. Knee joint.
Hematoma. A hematoma around the right eye caused by an injury. A hematoma is the result of bleeding Hematoma. A hematoma around the right eye caused by an injury. A hematoma is the result of bleeding
L-carnitine is a popular dietary supplement. Notice the claims of improving athletic performance and ... L-carnitine is a popular dietary supplement. Notice the claims of improving athletic performance and ...
A plastic MAP sensor used for training purposes showing the electronic circuit board and electrical ... A plastic MAP sensor used for training purposes showing the electronic circuit board and electrical ...
Apply stroking from ankle to knee, using both palms to slide along the calf muscles. If hands will ... Apply stroking from ankle to knee, using both palms to slide along the calf muscles. If hands will ...
Video: Medullary osmotic gradient - influencing factors

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