ArticleAnnals of internal medicine2011
ACP Journal Club. Tiotropium reduced exacerbations more than salmeterol in moderate-to-very severe COPD.
Peter WarkPubMed ↗Publisher ↗
No numbers read from the abstract.
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this papercites it
ArticleAnnals of internal medicine2011
Peter WarkPubMed ↗Publisher ↗
No numbers read from the abstract.