(Q47648979)
Statements
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The effect of helium and oxygen on exercise performance in chronic obstructive pulmonary disease: a randomized crossover trial. (English)
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Elizabeth A Laude
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Nicholas C Duffy
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Chloe Baveystock
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Beatriz Dougill
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Rod Lawson
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Paul W Jones
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Peter M Calverley
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26 January 2006
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173
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865-870
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8
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Identifiers
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