American Journal of Respiratory and Critical Care Medicine (2005) - Comments
pubmed: 15860753  doi: 10.1164/rccm.200408-1041oc  issn: 1073-449x  issn: 1535-4970 

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Omar S. Usmani, Kazuhiro Ito, Kittipong Maneechotesuwan, Misako Ito, Malcolm Johnson, Peter J. Barnes, Ian M. Adcock