PT - JOURNAL ARTICLE AU - E.M. Clini TI - Ask the expert - New developments in long-term oxygen therapy and ambulatory oxygen DP - 2008 Mar 01 TA - Breathe PG - 264--268 VI - 4 IP - 3 4099 - http://breathe.ersjournals.com/content/4/3/264.short 4100 - http://breathe.ersjournals.com/content/4/3/264.full SO - breathe2008 Mar 01; 4