| Literature DB >> 3929894 |
Abstract
Keywords: Biomedical and Behavioral Research; University of Glasgow; University of Pennsylvania
Mesh:
Year: 1985 PMID: 3929894 PMCID: PMC1418216 DOI: 10.1136/bmj.291.6495.605-b
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623