Articles

Letters, Notes, and Answers

Br Med J 1933; 2 doi: https://doi.org/10.1136/bmj.2.3797.716 (Published 14 October 1933) Cite this as: Br Med J 1933;2:716

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