Research Article Medicine and the computer. IV. Assisting radiotherapy planning. Br Med J 1968; 3 doi: https://doi.org/10.1136/bmj.3.5611.180 (Published 20 July 1968) Cite this as: Br Med J 1968;3:180 Article Related content Metrics Responses Peer review This is a PDF-only article. The first page of the PDF of this article appears below.