| Literature DB >> 3107667 |
G Dale, J A Fleetwood, A Weddell, R D Ellis, J R Sainsbury.
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Year: 1987 PMID: 3107667 PMCID: PMC1246005 DOI: 10.1136/bmj.294.6577.939
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623