More Information
Bibliography:local:bmj;2/4627/572
istex:2B9DCA37AE420876E4C4A2F47A792608B677EF1E
href:bmj-2-572.pdf
PMID:18139451
ark:/67375/NVC-V0D6N2XM-2
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0007-1447
1468-5833
DOI:10.1136/bmj.2.4627.572