| Literature DB >> 3089525 |
D M Matthews, A W Patrick, D A Collier, H A Kellett, J M Steel, B F Clarke, C C MacIntyre.
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Year: 1986 PMID: 3089525 PMCID: PMC1341055 DOI: 10.1136/bmj.293.6543.367
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623