Long-term domiciliary oxygen therapy.
D003365:Costs and Cost Analysis; D006699:Home Care Services / Q000191:economics; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000628:therapy*; D010102:Oxygen Inhalation Therapy / Q000191:economics; D013222:State Medicine; D013997:Time Factors; D006113:United Kingdom