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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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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Ion uptake at root hair membranes. Ion uptake at root hair membranes.
A hair is an array of many α-keratin filaments, made up of the substructures A hair is an array of many α-keratin filaments, made up of the substructures
Chimpanzees in nearby Mahale National Park practice a different grooming style: they clasp hands whi Chimpanzees in nearby Mahale National Park practice a different grooming style: they clasp hands whi
Saccular Hair Cells Saccular Hair Cells
Details of two hair cells Details of two hair cells
Family interactive style predicts academic achievement in high school Family interactive style predicts academic achievement in high school
Video: Mechanics of Sound Animation

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