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Vannera sign

Vannera a sign (F. Wanner, the German otorhinolaryngologist, 1870-1944) – the deterioration in bone conductivity of sounds observed in the absence of defeat of an acoustic organ; is the evidence of organic lesion of a brain.

 
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The most rare disease – a disease the Kura. Only representatives of the tribe Faure in New Guinea are ill it. The patient dies of laughter. It is considered that eating of a human brain is an origin of a disease.