| Literature DB >> 6789963 |
M J Dodd, I D Griffiths, J W Howe, K W Mitchell.
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Year: 1981 PMID: 6789963 PMCID: PMC1506647 DOI: 10.1136/bmj.283.6285.193-a
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623