Articles
Reviews
Br Med J 1929; 1 doi: https://doi.org/10.1136/bmj.1.3556.403 (Published 02 March 1929) Cite this as: Br Med J 1929;1:403This is a PDF-only article. The first page of the PDF of this article appears above.
Intended for healthcare professionals
This is a PDF-only article. The first page of the PDF of this article appears above.