| Literature DB >> 3119125 |
T Pettersson1, E Koivunen, M Ilvonen, J Jouppila, E Aalto, C Wasastjerna.
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Year: 1987 PMID: 3119125 PMCID: PMC1248004 DOI: 10.1136/bmj.295.6604.958
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623