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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Thyroid conditions may make getting pregnant impossible.
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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.
Cheirurus sp., middle Ordovician age, Volkhov River, Russia
The path of sound waves through the outer, middle, and inner ear.
The couple discusses grief over the loss of a child.
Hearing and Reading Words
Response to Sound Waves
Maintaining Weight Loss