| Literature DB >> 6809135 |
W G O'Callaghan, N Joyce, H E Counihan, M Ward, P Lavelle, E O'Brien.
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Year: 1982 PMID: 6809135 PMCID: PMC1499293 DOI: 10.1136/bmj.285.6340.478
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623