J D Walker. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » Canada/epidemiologyHumansSmoking/epidemiologySmoking Prevention
Year: 1993 PMID: 8420653 PMCID: PMC1490445
Source DB: PubMed Journal: CMAJ ISSN: 0820-3946 Impact factor: 8.262