Long-term oxygen therapy.
Tarpy
S P
SP
Pulmonary Center, Boston University School of Medicine, MA, USA.
Celli
B R
BR
D006801:Humans; D000860:Hypoxia / Q000503:physiopathology / Q000628:therapy*; D008173:Lung Diseases, Obstructive / Q000628:therapy; D010102:Oxygen Inhalation Therapy; D013997:Time Factors