Br Med J. 1974 Mar 02;1(5904):394. doi: 10.1136/bmj.1.5904.394-c.
British medical journal
W Gissane, J P Bull
PMID: 4819195 PMCID: PMC1633589 DOI: 10.1136/bmj.1.5904.394-c Free PMC Article
[No abstract available.]