No abstract available
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Aged
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Aged, 80 and over
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Equipment Design
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Exercise Test / instrumentation*
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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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Monitoring, Physiologic / instrumentation
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Pulmonary Disease, Chronic Obstructive / rehabilitation*
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Sampling Studies