G A Uffer. Show Affiliations »
Abstract
Mesh: See more » AbsenteeismAdultAge FactorsHumansMaleMiddle AgedOccupational MedicineSmokingSocial ClassSurveys and QuestionnairesSwitzerland
Year: 1974 PMID: 4421642
Source DB: PubMed Journal: Schweiz Rundsch Med Prax ISSN: 1013-2058