Br Med J. 1938 Aug 27;2(4051):449-51. doi: 10.1136/bmj.2.4051.449.
British medical journal
J S Harris, C R Birnie
PMID: 20781697 PMCID: PMC2210488 DOI: 10.1136/bmj.2.4051.449
[No abstract available.]