R Smith. Show Affiliations »
Abstract
Mesh: See more » ResearchResearch Support as TopicState MedicineUnited Kingdom
Year: 1991 PMID: 2036498 PMCID: PMC1669644 DOI: 10.1136/bmj.302.6784.1034
Source DB: PubMed Journal: BMJ ISSN: 0959-8138