Br Med J 1918; 1 doi: (Published 16 March 1918) Cite this as: Br Med J 1918;1:317

This is a PDF-only article. The first page of the PDF of this article appears below.

PDF extract preview

Sign in

Log in through your institution

Free trial

Register for a free trial to to receive unlimited access to all content on for 14 days.
Sign up for a free trial