Br Med J. 1976 Nov 06;2(6044):1126-7. doi: 10.1136/bmj.2.6044.1126.
British medical journal
A Paton
PMID: 990801 PMCID: PMC1689415 DOI: 10.1136/bmj.2.6044.1126 Free PMC Article
[No abstract available.]