For healthcare professionals only

Medical Practice

Personal View

Br Med J 1971; 4 doi: https://doi.org/10.1136/bmj.4.5780.167 (Published 16 October 1971) Cite this as: Br Med J 1971;4:167

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