F Sawicki. Show Affiliations »
Abstract
Entities: Disease
Mesh: See more » AdultAgedBronchitis/epidemiologyChronic DiseaseFemaleHumansMaleMiddle AgedPolandRespiratory Tract Diseases/epidemiologySampling StudiesSurveys and Questionnaires
Year: 1972 PMID: 5070981
Source DB: PubMed Journal: Przegl Epidemiol ISSN: 0033-2100