| Literature DB >> 2390551 |
C Grönhagen-Riska1, A M Teppo, A Helanterä, E Honkanen, H Julkunen.
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Year: 1990 PMID: 2390551 PMCID: PMC1663325 DOI: 10.1136/bmj.300.6741.1696
Source DB: PubMed Journal: BMJ ISSN: 0959-8138