S Lock. Show Affiliations »
Abstract
Mesh: See more » Information Services/trendsMedicinePeriodicals as Topic
Year: 1982 PMID: 6803943 PMCID: PMC1498199 DOI: 10.1136/bmj.284.6325.1289
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623