Br Med J (Clin Res Ed). 1985 Aug 03;291(6491):361-2. doi: 10.1136/bmj.291.6491.361.
British medical journal (Clinical research ed.)
J N Johnson
PMID: 3926194 PMCID: PMC1416621 DOI: 10.1136/bmj.291.6491.361 Free PMC Article
[No abstract available.]