P Ketchum. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » Health OccupationsHumansJob DescriptionPractice Guidelines as TopicPrimary Prevention/methodsSmoking PreventionWorld Health Organization
Year: 1993 PMID: 8499781 PMCID: PMC2379659
Source DB: PubMed Journal: Can Fam Physician ISSN: 0008-350X Impact factor: 3.275