G Reichel, W T Ulmer. Show Affiliations »
Abstract
Entities: Disease
Mesh: See more » AgedAgricultural Workers' DiseasesBronchial Diseases/epidemiologyBronchitis/epidemiologyCough/epidemiologyFemaleGermany, WestHousingHumansIncomeMaleMiddle AgedRespiratory Tract Diseases/epidemiologySmokingSocioeconomic FactorsSputum
Year: 1970 PMID: 5482953
Source DB: PubMed Journal: Int Arch Arbeitsmed ISSN: 0020-5923