In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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The horizontal fraction bar was introduced by the Arabs.
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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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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
General structure of an amino acid
SHEEP BRAIN
Jaguar F-type back
Intaglio printmaking technique, general view.
Gerotor-type oil pump driven by the crankshaft.
a) Type IV hypersensitivity reaction, contact dermatitis as the result of reaction to the nickel in ...