Research Article Letter: Relative risks of obesity and smoking. Br Med J 1973; 4 doi: https://doi.org/10.1136/bmj.4.5884.106 (Published 13 October 1973) Cite this as: Br Med J 1973;4:106 Article Related content Metrics Responses Peer review This article has a correction. Please see:A free service? - October 25, 1975 This is a PDF-only article. The first page of the PDF of this article appears below.