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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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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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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

A typical reaction in which NAD+ acts as an oxidizing agent A typical reaction in which NAD+ acts as an oxidizing agent
Effects of an inhibitor and an uncoupler on oxygen uptake and ATP synthesis Effects of an inhibitor and an uncoupler on oxygen uptake and ATP synthesis
Acetylcholinesterase (AChE) Acetylcholinesterase (AChE)
Work is done by an external agent Work is done by an external agent
Conversion of guanine to 6-ethylguanine by the alkylating agent ethylmethane sulfonate (EMS) Conversion of guanine to 6-ethylguanine by the alkylating agent ethylmethane sulfonate (EMS)
What is the strongest oxidizing agent of the following set: MnCl2, Mn(OH)3, MnO2, KMnO4? What is the strongest oxidizing agent of the following set: MnCl2, Mn(OH)3, MnO2, KMnO4?
Video: Cavernous Sinus Larynx Middle Ear Orbit: Granulesm Animation

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