No abstract available
MeSH terms
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Adult
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Aged
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Blood Pressure / drug effects*
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Brachial Artery
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Brain Diseases / complications
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Chronic Disease
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Female
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Humans
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Hypotension, Orthostatic / classification
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Hypotension, Orthostatic / complications
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Hypotension, Orthostatic / epidemiology*
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Middle Aged
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Norepinephrine / pharmacology*
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Spinal Diseases / complications
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Valsalva Maneuver