How good is the evidence for ambulatory oxygen in chronic obstructive pulmonary disease.
Ambrosino
N
N
Giannini
D
D
D'Amico
I
I
D000553:Ambulatory Care; D006801:Humans; D010102:Oxygen Inhalation Therapy / Q000379:methods*; D029424:Pulmonary Disease, Chronic Obstructive / Q000628:therapy*; D016032:Randomized Controlled Trials as Topic