Vibrotactile aid
A mechanical instrument attached to the head, near the ear(s), that helps individuals who are deaf to detect and interpret sounds through their sense of touch. It is called a vibrotactile aid because it serves as an aid by permitting a person to feel the vibrations, in this case, of sounds.
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Characterized by the absence of sustained periods of remission, chronic cluster headache may start with no past history of cluster headaches, or it may emerge several years after the patient has experienced an episodic pattern of cluster headaches. The episodic and acute forms of cluster headache may transform into one another, so it seems most […]
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Plural of villus, a tiny finger-like or vascular projection.
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