| Literature DB >> 6788131 |
F B Gibberd, N G Page, K M Spencer, E Kinnear, J B Hawksworth.
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Year: 1981 PMID: 6788131 PMCID: PMC1505243 DOI: 10.1136/bmj.282.6271.1196
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623