More Information
Bibliography:href:bmj-305-1128.pdf
local:bmj;305/6862/1128
PMID:1463948
ark:/67375/NVC-3RVZ8FN5-M
istex:135DEB77204C643371D31B97CB91E12C146A49C6
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0959-8138
0959-8146
1468-5833
1756-1833
DOI:10.1136/bmj.305.6862.1128