| Literature DB >> 6439331 |
J R Stephenson, S R Heard, M A Richards, S Tabaqchali.
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Year: 1984 PMID: 6439331 PMCID: PMC1443860 DOI: 10.1136/bmj.289.6458.1584
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623