Research Article
Old plagues in the jet age. International aspects of present and future control of communicable disease.
Br Med J 1968; 4 doi: https://doi.org/10.1136/bmj.4.5634.789 (Published 28 December 1968) Cite this as: Br Med J 1968;4:789This is a PDF-only article. The first page of the PDF of this article appears above.