| Literature DB >> 10657329 |
S Stallard1, J C Litherland, C M Cordiner, H M Dobson, W D George, E A Mallon, D Hole.
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Year: 2000 PMID: 10657329 PMCID: PMC27281 DOI: 10.1136/bmj.320.7231.348
Source DB: PubMed Journal: BMJ ISSN: 0959-8138