| Literature DB >> 6812720 |
J C Stevenson, M C White, G F Joplin, I MacIntyre.
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Year: 1982 PMID: 6812720 PMCID: PMC1500324 DOI: 10.1136/bmj.285.6347.1010
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623