General Articles And News

Medical News

Br Med J 1952; 2 doi: https://doi.org/10.1136/bmj.2.4783.571 (Published 06 September 1952) Cite this as: Br Med J 1952;2:571

This article has a correction. Please see:

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