No abstract available
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Analysis of Variance
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Brain Stem / pathology*
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Female
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Humans
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Male
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Middle Aged
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Motor Neuron Disease / diagnosis*
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Myasthenia Gravis / diagnosis*
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Third Ventricle / diagnostic imaging*
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Ultrasonography, Doppler, Transcranial / methods*