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Vasoconstriction

Vasoconstriction (vasoconstrictio; lat. vas – a vessel + lat. constrictio – narrowing, tightening) – the narrowing of a gleam of blood vessels caused by temporary increase in a tone of a vascular wall.

 
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In the aspiration to pull out the patient, doctors often go too far. So, for example, a certain Charles Janszen during the period from 1954 to 1994 endured more than 900 operations on removal of new growths.