Intended for healthcare professionals

General Articles And News

Medical News

Br Med J 1957; 2 doi: https://doi.org/10.1136/bmj.2.5059.1499 (Published 21 December 1957) Cite this as: Br Med J 1957;2:1499
PDF extract preview

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

Log in

Log in through your institution

Subscribe

* For online subscription