Research Article Ltter from . . . Chicago. Foreign visitors. Br Med J 1975; 2 doi: https://doi.org/10.1136/bmj.2.5967.383 (Published 17 May 1975) Cite this as: Br Med J 1975;2:383 Article Related content Metrics Responses Peer review This is a PDF-only article. The first page of the PDF of this article appears below.