| Literature DB >> 14428789 |
Abstract
Entities:
Keywords: BRONCHITIS/statistics; RESPIRATION/physiology; RESPIRATORY SYSTEM/diseases; SMOKING
Mesh:
Year: 1960 PMID: 14428789 PMCID: PMC1967048 DOI: 10.1136/bmj.1.5171.450
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447