Intended for healthcare professionals

Articles

ANNOTATIONS

Br Med J 1949; 2 doi: https://doi.org/10.1136/bmj.2.4633.920 (Published 22 October 1949) Cite this as: Br Med J 1949;2:920
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