PT - JOURNAL ARTICLE AU - T. L. Petty TI - Long-term oxygen therapy AID - 10.1183/09031936.05.00068605 DP - 2005 Oct 01 TA - European Respiratory Journal PG - 746--747 VI - 26 IP - 4 4099 - http://erj.ersjournals.com/content/26/4/746.short 4100 - http://erj.ersjournals.com/content/26/4/746.full SO - Eur Respir J2005 Oct 01; 26