PT - JOURNAL ARTICLE AU - Luke S Howard TI - Oxygen therapy AID - 10.7861/clinmedicine.9-2-156 DP - 2009 Apr 01 TA - Clinical Medicine PG - 156--159 VI - 9 IP - 2 4099 - http://www.rcpjournals.org/content/9/2/156.short 4100 - http://www.rcpjournals.org/content/9/2/156.full SO - Clin Med2009 Apr 01; 9