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Comment
. 2008 Jul 1;178(1):105-6; author reply 106-7.
doi: 10.1164/ajrccm.178.1.105a.

Treatment step down should be avoided at entry in COPD therapeutic trials

Eric Marchand
Comment

Treatment step down should be avoided at entry in COPD therapeutic trials

Eric Marchand. Am J Respir Crit Care Med. .
No abstract available

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