| Literature DB >> 3094780 |
H Jensen, H Ring-Larsen, P Garsdal, P Fruergaard.
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Year: 1986 PMID: 3094780 PMCID: PMC1341921 DOI: 10.1136/bmj.293.6554.1073-a
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623