(Q54243123)
Statements
Design of the Lung Health Study: a randomized clinical trial of early intervention for chronic obstructive pulmonary disease. (English)
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J E Connett
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J W Kusek
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W C Bailey
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P O'Hara
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M Wu
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1 April 1993
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14
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3S-19S
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2 Suppl
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Identifiers
1 reference