| Literature DB >> 6814694 |
J M Walker, D H Cove, D G Beevers, B A Leatherdale, R F Fletcher, A D Wright.
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Year: 1982 PMID: 6814694 PMCID: PMC1500801 DOI: 10.1136/bmj.285.6355.1658-a
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623