Br Med J (Clin Res Ed). 1987 Jul 18;295(6591):225-6. doi: 10.1136/bmj.295.6591.225.
British medical journal (Clinical research ed.)
D Newton
PMID: 20742868 PMCID: PMC1247070 DOI: 10.1136/bmj.295.6591.225
[No abstract available.]