| Literature DB >> 6786674 |
O J Siemssen, J T Andersen, H H Meyhoff, J Nordling, S Walter.
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Year: 1981 PMID: 6786674 PMCID: PMC1505839 DOI: 10.1136/bmj.282.6280.1928
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623