%0 Journal Article %K Peer Reviewed Paper %K Checked %B Cochrane Database of Systematic Reviews %D 2004 %F MSjournal %G eng %L N %P Epub. [Impact Factor 4.654] %T Positive expiratory pressure physiotherapy for airway clearance in people with cystic fibrosis %V Issue 1 %1 not listed %2 4.654 %! Cochrane Database Syst RevCochrane Database Syst Rev %& 4.654