No abstract available
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Cohort Studies
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Female
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Humans
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Linear Models
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London
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Male
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Pulmonary Disease, Chronic Obstructive / classification*
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Pulmonary Disease, Chronic Obstructive / diagnosis
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Severity of Illness Index*
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Surveys and Questionnaires*