G R Horton. Show Affiliations »
Abstract
Mesh: See more » Advertising/methodsPeriodicals as Topic
Year: 1984 PMID: 6423104 PMCID: PMC1441624 DOI: 10.1136/bmj.288.6420.831
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623