Br Med J. 1974 Jun 08;2(5918):561. doi: 10.1136/bmj.2.5918.561-a.
British medical journal
T L Cleave
PMID: 4407136 PMCID: PMC1610923 DOI: 10.1136/bmj.2.5918.561-a Free PMC Article
[No abstract available.]