Research Article School of medicine and human biology: Working Party No. IV. Report no 2. Br Med J 1965; 2 doi: http://dx.doi.org/10.1136/bmj.2.5470.1112 (Published 06 November 1965) Cite this as: Br Med J 1965;2:1112 Article Related content Metrics Responses Peer review This is a PDF-only article. The first page of the PDF of this article appears below.