By J. A. BEASLEY

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Spontaneous spinal epidural hematomas are very rare. Only 25% of them are located in the cervical area. Patients who survive an acute spontaneous cervical epidural hematoma are usually left with severe neurological deficits. The case of an elderly patient with an acute cervical epidural hematoma who fully recovered after surgical treatment is presented.
The characteristic 'N' shaped pressure waves recorded at ground level below the flight path of supersonic aircraft have compressive regions very much less steep than predicted by theory, with a consequent reduction in the subjective annoyance. Attempts have been made to explain this phenomenon in terms of the effect of atmospheric turbulence. This Report is(More)
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