Research Article
Survey of influenza antibody in England by the strain-specific complement-fixation test.
Br Med J 1967; 4 doi: https://doi.org/10.1136/bmj.4.5571.80 (Published 14 October 1967) Cite this as: Br Med J 1967;4:80This is a PDF-only article. The first page of the PDF of this article appears above.