| Literature DB >> 7000255 |
A J Robertson, J Gibbs, R Potts, R A Brown, M C Browning, J S Beck.
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Year: 1980 PMID: 7000255 PMCID: PMC1713849 DOI: 10.1136/bmj.281.6235.305-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447