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Bibliography:local:bmj;1/5027/1095
href:bmj-1-1095.pdf
istex:F3F731F6D7650F86C46C1B9030BE51B44910A69F
PMID:13426550
ark:/67375/NVC-R8R78PR2-C
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0007-1447
1468-5833
DOI:10.1136/bmj.1.5027.1095