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Illicit drug use costs the United States approximately $181 billion every year.

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The horizontal fraction bar was introduced by the Arabs.

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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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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.

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Actin filaments Actin filaments
A Fungal Garden A Fungal Garden
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
The three types of cytoskeletal filaments The three types of cytoskeletal filaments
Children with disabilities used to be sent to special schools. In a process called mainstreaming or ... Children with disabilities used to be sent to special schools. In a process called mainstreaming or ...
Cancer cells can move to new locations in the body, a process called metastasis Cancer cells can move to new locations in the body, a process called metastasis
Video: Embryonic development - Weeks 5 to 8

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