Articles

Reviews

Br Med J 1923; 1 doi: https://doi.org/10.1136/bmj.1.3243.331 (Published 24 February 1923) Cite this as: Br Med J 1923;1:331

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

Subscribe