| Literature DB >> 6434088 |
P A Semple, A Graham, Y Malcolm, G H Beastall, W S Watson.
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Year: 1984 PMID: 6434088 PMCID: PMC1442911 DOI: 10.1136/bmj.289.6448.801
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623