| Literature DB >> 6216940 |
H C Spencer, N R Poulter, J D Lury, C J Poulter.
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Year: 1982 PMID: 6216940 PMCID: PMC1500699 DOI: 10.1136/bmj.285.6356.1703
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623