Description
Bibliography:PMID:8400978
href:bmj-307-547.pdf
local:bmj;307/6903/547
istex:E44D66FCADEA0B99EC98AAD7ACC4B0C63BBA4450
ark:/67375/NVC-89N52TX0-0
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-3
content type line 23
ObjectType-Review-1
ISSN:0959-8138
0959-8146
1468-5833
1756-1833
DOI:10.1136/bmj.307.6903.547