More Information
Bibliography:href:bmj-1-219.pdf
ark:/67375/NVC-SL0VC4C2-J
PMID:14074179
istex:EA568CBC7455888430B9388E78DEBD8535260AE8
local:bmj;1/5377/219
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0007-1447
1468-5833
DOI:10.1136/bmj.1.5377.219