| Literature DB >> 6786607 |
M J Bowles, V B Subramanian, A B Davies, E B Raftery.
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Year: 1981 PMID: 6786607 PMCID: PMC1505744 DOI: 10.1136/bmj.282.6278.1754
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623