| Literature DB >> 3081180 |
G W Stewart, S P Freegard, D H Keeling, A D Perrett.
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Year: 1986 PMID: 3081180 PMCID: PMC1339566 DOI: 10.1136/bmj.292.6520.589-a
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623