Br Med J. 1968 Jan 27;1(5586):227-9. doi: 10.1136/bmj.1.5586.227.
British medical journal
S Sherlock
PMID: 4864242 PMCID: PMC1984787 DOI: 10.1136/bmj.1.5586.227 Free PMC Article
[No abstract available.]