| Literature DB >> 7000257 |
J P Simmonds, G I Russell, A J Cowley, H F Sewell, J R Hearnshaw.
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Year: 1980 PMID: 7000257 PMCID: PMC1713496 DOI: 10.1136/bmj.281.6236.355
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447