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Comment
. 2006 Jun;27(6):1324-5; author reply 1325-6.
doi: 10.1183/09031936.06.00022606.

Risk factors of frequent exacerbations in difficult-to-treat asthma

C Butler, L G Heaney
Free article
Comment

Risk factors of frequent exacerbations in difficult-to-treat asthma

C Butler et al. Eur Respir J. 2006 Jun.
Free article
No abstract available

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