| Literature DB >> 2372642 |
R Koppensteiner1, F Stockenhuber, C Jahn, P Balcke, E Minar, H Ehringer.
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Year: 1990 PMID: 2372642 PMCID: PMC1663271 DOI: 10.1136/bmj.300.6740.1626
Source DB: PubMed Journal: BMJ ISSN: 0959-8138