| Literature DB >> 7437749 |
H N Cohen, G H Beastall, W A Ratcliffe, C Gray, I D Watson, J A Thomson.
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Year: 1980 PMID: 7437749 PMCID: PMC1714121 DOI: 10.1136/bmj.281.6241.646
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447