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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
Development of the human brain.
The Black Bee-eater (Merops gularis) is a species of bird in the Meropidae family.
Human-Biology
Human embryonic stem cell colony and iPS colony
Review of Stages of Personality, Morality, and Faith Development
Hydrozoan. Hydra, a freshwater species capturing and digesting a water flea.