TY - JOUR T1 - Long-term oxygen therapy (LTOT) – is it always appropriately prescribed? JF - Clinical Medicine JO - Clin Med SP - 634 LP - 634 DO - 10.7861/clinmedicine.9-6-634 VL - 9 IS - 6 AU - Rh Mason AU - J Suntharalingam Y1 - 2009/12/01 UR - http://www.rcpjournals.org/content/9/6/634.abstract ER -