| Literature DB >> 4878644 |
J A Smith, M B Eadie, N R Grist, J H Lawson, K W Martin, I W Pinkerton.
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Year: 1968 PMID: 4878644 PMCID: PMC1912015 DOI: 10.1136/bmj.4.5624.188-c
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447