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Bibliography:ark:/67375/NVC-F7ZWKMSB-Z
istex:4EB7C4DC512168B3354642C15E89FA6CF861BBDB
href:bmj-2-527.pdf
local:bmj;2/5408/527
PMID:14173182
Lecture delivered at the Postgraduate Medical School of London on 11 October 1963.
ISSN:0007-1447
1468-5833
DOI:10.1136/bmj.2.5408.527