(Q50553289)
Statements
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Validity and underrecording of diagnosis of COPD in the Danish National Patient Registry. (English)
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Peter Lange
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Birthe Hellquist
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Paul D Bartels
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Birgitte R Krog
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Anne-Marie S Hansen
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Daniel Buck
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Anette E Bunk
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12 February 2011
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105
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7
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1063-1068
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Identifiers
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