TY - JOUR T1 - Recommendations for long term oxygen therapy (LTOT). European Society of Pneumology Task Group JF - European Respiratory Journal JO - Eur Respir J SP - 160 LP - 164 DO - 10.1183/09031936.93.02020160 VL - 2 IS - 2 A2 - , Y1 - 1989/02/01 UR - http://erj.ersjournals.com/content/2/2/160.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -