| Literature DB >> 9549453 |
H J Nielsen1, H Pappot, I J Christensen, N Brünner, O Thorlacius-Ussing, F Moesgaard, K Danø, J Grøndahl-Hansen.
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Year: 1998 PMID: 9549453 PMCID: PMC28485 DOI: 10.1136/bmj.316.7134.829
Source DB: PubMed Journal: BMJ ISSN: 0959-8138