T Mork. Show Affiliations »
Abstract
Mesh: See more » Cardiovascular Diseases/epidemiologyEducationEpidemiologic MethodsHumansPostal ServiceSurveys and Questionnaires
Year: 1970 PMID: 5492970 DOI: 10.1016/0021-9681(70)90023-8
Source DB: PubMed Journal: J Chronic Dis ISSN: 0021-9681