Description
Bibliography:local:bmj;2/3424/346-a
href:bmj-2-346-2.pdf
ark:/67375/NVC-1JCR40JH-B
istex:0B1041A41072FA4B5DB6609D4E2E5BA1EA31F4BE
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0007-1447
1468-5833
DOI:10.1136/bmj.2.3424.346-a