Br Med J. 1970 Feb 28;1(5695):566. doi: 10.1136/bmj.1.5695.566-c.
British medical journal
G Z Brett
PMID: 5435207 PMCID: PMC1699543 DOI: 10.1136/bmj.1.5695.566-c Free PMC Article
[No abstract available.]