For healthcare professionals only

Medical Practice

Materia Non Medica

Br Med J 1977; 1 doi: https://doi.org/10.1136/bmj.1.6071.1276 (Published 14 May 1977) Cite this as: Br Med J 1977;1:1276

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

Log in

Log in through your institution

Subscribe

* For online subscription