More Information
Bibliography:ark:/67375/NVC-WDHBW0B7-R
istex:EB9AA1334EEF4CC05F83F116573CC550C4A5ED79
href:bmj-1-972.pdf
local:bmj;1/5283/972
PMID:14483944
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0007-1447
1468-5833
DOI:10.1136/bmj.1.5283.972