Intended for healthcare professionals

Correspondence

World Health Research Centre

Br Med J 1964; 2 doi: https://doi.org/10.1136/bmj.2.5401.126-d (Published 11 July 1964) Cite this as: Br Med J 1964;2:126
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