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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

A molecular mechanism for suppression A molecular mechanism for suppression
The effects of aging can be seen in the decline in function of many physiological systems. The effects of aging can be seen in the decline in function of many physiological systems.
Measuring the Activity of Feature Detection Cells Measuring the Activity of Feature Detection Cells
Antiparkinson Drugs Focus on Restoring Dopamine Function and Blocking Cholinergic Activity in the ... Antiparkinson Drugs Focus on Restoring Dopamine Function and Blocking Cholinergic Activity in the ...
Radioactive protection services record book and two badge-style dosimeters. Radioactive protection services record book and two badge-style dosimeters.
Somatic Nervous Systems Somatic Nervous Systems
Video: Hierarchical Sequencing Method - Sequence Tagged Sites

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