| Literature DB >> 6790019 |
T J Beattie, A V Murphy, M L Willoughby, J J Belch.
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Year: 1981 PMID: 6790019 PMCID: PMC1506269 DOI: 10.1136/bmj.283.6289.470
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623