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Abstract
Entities: Chemical
Mesh: See more » Bronchitis/therapyChronic DiseaseEconomics, MedicalHome Care ServicesHumansOxygen Inhalation Therapy/instrumentation
Year: 1977 PMID: 871800 PMCID: PMC1630961
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447