| Literature DB >> 6412799 |
B R MacDonald, P B Jones, R G Russell, J Radford, J F Martin.
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Year: 1983 PMID: 6412799 PMCID: PMC1549055 DOI: 10.1136/bmj.287.6394.727
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623