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