| Literature DB >> 18835641 |
Holger J Schünemann1, Mark Woodhead, Antonio Anzueto, Sonia Buist, William Macnee, Klaus F Rabe, John Heffner.
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Year: 2008 PMID: 18835641 DOI: 10.1016/S0140-6736(08)61347-1
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321