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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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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).

Diverticulosis. It is the presence of abnormal pouches in the wall of the large intestine (diverticu Diverticulosis. It is the presence of abnormal pouches in the wall of the large intestine (diverticu
Pigmented bands in nail of patient with dark skin Pigmented bands in nail of patient with dark skin
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
Various types of skin lesions. Various types of skin lesions.
Jostling. A form of coarse vibration that includes mobilizing joints. Jostling. A form of coarse vibration that includes mobilizing joints.
Some Inherited Predispositions to Cancer Some Inherited Predispositions to Cancer
Video: Nucleic acid digestion -small intestine

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