| Literature DB >> 3113641 |
Abstract
Entities:
Keywords: British Medical Association; Health Care and Public Health
Mesh:
Substances:
Year: 1987 PMID: 3113641 PMCID: PMC1246958 DOI: 10.1136/bmj.295.6590.73-a
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623