Errata
Erratum
Br Med J 1917; 1 doi: https://doi.org/10.1136/bmj.1.2933.376 (Published 17 March 1917) Cite this as: Br Med J 1917;1:376This 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.