Postgrad Med J. 1966 Nov;42(493):709-15. doi: 10.1136/pgmj.42.493.709.
Postgraduate medical journal
M E Herford
PMID: 5978581 PMCID: PMC2466092 DOI: 10.1136/pgmj.42.493.709 Free PMC Article
[No abstract available.]