Middle Articles B.M.A. Annual Clinical Meeting, Malta, G.C.: Proceedings Br Med J 1969; 2 doi: https://doi.org/10.1136/bmj.2.5650.171 (Published 19 April 1969) Cite this as: Br Med J 1969;2:171 Article Related content Metrics Responses Peer review This article has a correction. Please see:Errata - April 26, 1969 This is a PDF-only article. The first page of the PDF of this article appears below.