| Literature DB >> 6411245 |
W C Marshall, S Sheppard, O Stark, A Milton, R W Smithells.
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Year: 1983 PMID: 6411245 PMCID: PMC1549021 DOI: 10.1136/bmj.287.6392.609
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623