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July 14, 1894

CONCUSSION OF THE BRAIN.Read in the Section on Surgery and Anatomy at the Forty-fifth Annual Meeting of the American Medical Association, held at San Francisco, June 5-8, 1894.

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JAMA. 1894;XXIII(2):48-52. doi:10.1001/jama.1894.02421070004001a

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During the last forty years the subject of concussion or commotion, as the Germans and derivative Latin writers term it, has been a matter of careful study, observation and experimental research. It is caused by some external violence which communicates vibration, oscillation or minute movement to the anatomic elements of the parts acted upon. In the causation all observers agree; but what occurs in the constituent elements of the parts affected can not be said to be as yet satisfactorily settled. All the parts of the body may be the subject of such action: Bones, muscles, nerves, viscera; and some assert that the blood itself may be the subject of concussion. The study of the effects of concussion has been devoted chiefly to the brain; yet it seems certain that the same cause would be followed by like effects, no difference what part of the body might be the site;

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