| Literature DB >> 14428412 |
Abstract
Entities:
Keywords: BRONCHITIS/epidemiology; ENVIRONMENTAL HEALTH
Mesh:
Year: 1960 PMID: 14428412 PMCID: PMC2481710 DOI: 10.1136/pgmj.36.414.261
Source DB: PubMed Journal: Postgrad Med J ISSN: 0032-5473 Impact factor: 2.401