Articles
Reviews
Br Med J 1915; 1 doi: https://doi.org/10.1136/bmj.1.2840.971 (Published 05 June 1915) Cite this as: Br Med J 1915;1:971This 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.